| Rank | Board name and description | Posts | Members |
| 1 | VW vortex forums Volkswagen and related car brands discussion boards | 54381936 | 468650 |
| 2 | Forocoches Spanish cars message boards | 41794398 | 457957 |
| 3 | Honda tech Honda cars enthusiasts forums | 34644340 | 297178 |
| 4 | Corvette Forum Chevrolet corvette forum | 30210909 | 220373 |
| 5 | Club RSX Honda RSX fans forums | 26667421 | 118184 |
| 6 | NASIOC Forums Forums of the North American Subaru Impreza Owners Club | 26334213 | 206222 |
| 7 | Forum Auto Automotive discussion (in french) | 24412819 | 427603 |
| 8 | Motor-talk.de German automotive discussion forums | 20892513 | 1231558 |
| 9 | Neons Neon enthusiasts discussion board | 18703170 | 19580 |
| 10 | Bimmerforums BMW car brand message boards | 16180580 | 225823 |
| 11 | S2KI Honda S2000 owners community | 15699523 | 81774 |
| 12 | Elaborare Italian car and bike tuning community | 12990232 | 64714 |
| 13 | LS2 General Motors discussion board | 11557327 | 24003 |
| 14 | LS1 Tech Chevrolet and GM enthousiasts discussion | 10533089 | 150451 |
| 15 | E46 fanatics BMW 3-series owners community | 9998926 | 145020 |
| 16 | Houston imports Houston import race scene forums | 9479570 | 44010 |
| 17 | Lay it low Lowriding fans message boards | 8938199 | 51904 |
| 18 | Pirate 4x4 4x4 message boards | 8639745 | 138249 |
| 19 | Scoobynet Subaru Impreza owners community | 8519799 | 102638 |
| 20 | SVT performance General Ford cars discussion forums | 8341287 | 88409 |
| 21 | Hifi Forum German audio and video message boards | 7817754 | 481539 |
| 22 | ClubSI Honda Civic SI owners forum | 7704147 | 55094 |
| 23 | EvolutionM Mitsubishi Lancer enthusiasts Community | 7144818 | 106443 |
| 24 | Jeep Forum Jeep message boards | 7000566 | 210550 |
| 25 | SRT Forums Dodge and Chrysler owners community | 6862928 | 72852 |
| 26 | Boostcruising Steet cruising and automotive forums | 6722249 | 102792 |
| 27 | BMW FAQ BMW enthusiast Spanish board | 6558747 | 86657 |
| 28 | S10 forum Chevrolet S-Series trucks enthousiasts forums | 6317936 | 49994 |
| 29 | MY350Z Nissan 350Z forums, gallery and chat | 6205085 | 122351 |
| 30 | Motor Forum Dutch motors discussion forums | 6160039 | 50545 |
| 31 | Montreal racing Car racing in Quebec (in french and english) message boards | 6085602 | 56108 |
| 32 | Rennlist Porsche owners forums | 6053856 | 65856 |
| 33 | Corsa Sport Vauxhall, Opel, and Holden message boards | 5967578 | 30292 |
| 34 | MTB news German mountain bike discussion forums | 5946916 | 153768 |
| 35 | Ford Trucks Ford trucks and vans forums | 5892067 | 461603 |
| 36 | 8th Civic 8th generation honda civic forum | 5883716 | 55296 |
| 37 | Automotive Forums Multi-brand automotive message boards | 5543591 | 620329 |
| 38 | Mustang Forums Ford Mustang owners forum | 5341985 | 97420 |
| 39 | Mustang world Ford Mustang fanatics message boards | 5317793 | 46886 |
| 40 | Living With Style General discussion message board | 5310562 | 83482 |
| 41 | VA Driven Virginia automotive ethusiast forum | 5250408 | 39656 |
| 42 | Tampa Racing Car racing community | 5117836 | 68059 |
| 43 | Maxima.org Nissan maxima fanatics forums | 4973706 | 81360 |
| 44 | 3SI Mitsubishi 3000GT/Stealth forums | 4942926 | 28315 |
| 45 | DFWstangs Ford Mustand discussion forums | 4918819 | 34873 |
| 46 | NICO forums Nissan and Infiniti message boards | 4873321 | 128193 |
| 47 | Corral.net Ford mustang message boards | 4809061 | 105826 |
| 48 | CamaroZ28.com Chevrolet Camaro Z28 discussion forums | 4804842 | 83782 |
| 49 | Supercars General automotive discussion forums | 4754225 | 172147 |
| 50 | Ferrari Chat Ferrari fans and owners community | 4737289 | 67481 |
| 51 | SXOC Nissan 200SX owners club forums | 4659384 | 20994 |
| 52 | Ford Truck World Ford trucks forums | 4593333 | 154775 |
| 53 | my.IS Lexus IS 300 message boards | 4455456 | 71003 |
| 54 | Mazdas 247 Mazda enthusiasts discussion board | 4438606 | 75395 |
| 55 | MSProtege Mazda owners forums | 4438587 | 75395 |
| 56 | RX-7 Club Mazda RX-7 forums | 4415016 | 95073 |
| 57 | IH8MUD Land Cruiser Forum | 4412924 | 42217 |
| 58 | What Boys Want Cars and babes forums | 4333761 | 125324 |
| 59 | Probe Talk Ford Probe owners forums | 4243785 | 30212 |
| 60 | Bimmerfest BMW owners community | 4191566 | 159822 |
| 61 | Third Gen Chevrolet camaro owners forums | 4131920 | 100683 |
| 62 | Jeepsunlimited.com Forums Discussion and marketplace about Jeeps | 4046652 | 100160 |
| 63 | M3 Forum BMW M3 owners community | 4034484 | 106180 |
| 64 | The Sportbike Network Motorbike racing and performance forum | 4009188 | 100207 |
| 65 | G35 Driver Nissan G35 enthusiasts community | 3995152 | 82122 |
| 66 | Super Honda Honda owners community | 3983289 | 147154 |
| 67 | 3.8 mustang Ford mustang owners community | 3918449 | 22213 |
| 68 | MIGWeb Vauxhall - Opel message boards | 3871115 | 46393 |
| 69 | F150 Online Ford F150 community | 3793039 | 152101 |
| 70 | MB world Mercedes-Benz owners message boards | 3789751 | 115116 |
| 71 | Full Size Chevy GM SUVs and trucks forums | 3788689 | 109407 |
| 72 | Race Sim Central Car racing simulations discussion forums | 3770882 | 117732 |
| 73 | Honda-Acura.net Honda cars message boards | 3769071 | 102508 |
| 74 | Civic Forums Honda civic enthousiasts forums | 3750455 | 49373 |
| 75 | Nissan Club Nissan Altima cars forums | 3646504 | 95485 |
| 76 | New Celica Toyota Celica discussion forums | 3592475 | 31948 |
| 77 | The Diesel Stop Ford Diesel message board | 3457029 | 80069 |
| 78 | Talk Audio Car audio discussion forum | 3429374 | 31330 |
| 79 | Stangnet Ford mustang enthousiasts message boards | 3394691 | 146802 |
| 80 | BMW Club BMW owners community (in Russian) | 3342278 | 28865 |
| 81 | Volks Zone UK based Volkswagen Discussion group | 3334481 | 42065 |
| 82 | Exriders Honda motorbikes discussion forums | 3288587 | 86725 |
| 83 | Mini 2 Mini owners community | 3285640 | 40763 |
| 84 | BARF Bay Area Riders Forum | 3274696 | 22566 |
| 85 | Pelican Parts Porsche and BMW message boards | 3255593 | 46386 |
| 86 | Skylines Australia Australian automotive forum | 3250547 | 33042 |
| 87 | 67-72 Chevy Trucks Chevrolet and GMC Pickup forums | 3212190 | 53251 |
| 88 | ScionLife Home of the Scion xA, Scion xB and Scion tC owner and enthusiast | 3210277 | 60665 |
| 89 | GM Full Size General Motors trucks community | 3122111 | 20916 |
| 90 | Passion Ford Ford message boards | 3115397 | 34465 |
| 91 | Corsa-C UK Vauxhall Corsa C sports club | 3062415 | 20225 |
| 92 | Beyond.ca Canadian car forums | 2946297 | 61361 |
| 93 | RX8 Club Mazda RX-8 owners forum | 2839586 | 55803 |
| 94 | Edmunds Automotive Forums | 2829351 | 397694 |
| 95 | Zilvia Nissan 240sx discussion board | 2819346 | 65270 |
| 96 | North American Motoring Mini message boards | 2795874 | 67658 |
| 97 | I-Club Subaru owners community | 2630822 | 35482 |
| 98 | TDI Club VW TDI engine message boards | 2575081 | 64590 |
| 99 | Nissan Silvia Nissan Silvia owners forums | 2572131 | 49277 |
| 100 | BMW Passion Italian BMW cars community | 2547817 | 19513 |
| 101 | BMW-Treff BMW owners community | 2527643 | 66395 |
| 102 | Speed TV Motorsports message boards | 2527547 | 109643 |
| 103 | 502 Streetscene Automotive Discussion Forum | 2513560 | 7262 |
| 104 | Colorado K5 Chevrolet and GM trucks message boards | 2501287 | 51636 |
| 105 | Ten Tenths Motorsports message board | 2464296 | 28828 |
| 106 | Turbo Bricks Car performance forums | 2446039 | 27814 |
| 107 | ATV Connection ATV discussion forums | 2371815 | 85348 |
| 108 | Offshore only Offshore boating enthousiasts forums | 2358073 | 39995 |
| 109 | Dodge Talk Dodge enthusiasts community | 2349767 | 125898 |
| 110 | B15 Sentra Nissan Sentra owners forums | 2330526 | 24910 |
| 111 | Dodge Diesel Diesel Truck resource board | 2326693 | 80762 |
| 112 | Chevelles.com Chevrolet Corvette forum | 2306784 | 49138 |
| 113 | Audisport Iberica Audi Forum (in Spanish) | 2264516 | 37299 |
| 114 | Club WRX Subaru Impreza owners community | 2249922 | 60097 |
| 115 | IWSTI Subaru Impreza STI owners community | 2234692 | 46523 |
| 116 | RC web Racing car forums (in Thai) | 2158030 | 94117 |
| 117 | Modded Mustangs Ford Mustang tuning forums | 2150100 | 27203 |
| 118 | American Jeepers American Jeepers discussion board | 2123374 | 9113 |
| 119 | SR20 Forum Nissan SR20 community | 2116762 | 27425 |
| 120 | 600RR Honda 600RR enthusiasts community | 2103484 | 39350 |
| 121 | Calais Turbo Australian car forum | 2061753 | 27834 |
| 122 | Full size bronco Ford Bronco and national 4x4 club forum | 2054260 | 33726 |
| 123 | Track Forum Racing discussion board | 2045758 | 8978 |
| 124 | DSM tuners Eagle / DSM cars tuning forums | 2015216 | 85733 |
| 125 | Explorer Forum Ford Explorer enthousiasts community | 1973486 | 112819 |
| 126 | NewTiburon Tiburon discussion board | 1967747 | 27141 |
| 127 | Mercedes Shop Mercedes owners community | 1961753 | 39955 |
| 128 | LS1 Chevrolet Camaro message boards | 1961379 | 44484 |
| 129 | Turbo Diesel Register Dodge turbo diesel trucks message board | 1954349 | 35743 |
| 130 | Cadillac Forums Forum for Cadillac owners and enthusiasts | 1908438 | 92645 |
| 131 | Performance forums Cars and motorbikes performance forums | 1898767 | 33486 |
| 132 | Toyota Nation Toyota cars enthusiasts forum | 1897786 | 103396 |
| 133 | Club3G Mitsubishi Eclipse owners forums | 1886158 | 17397 |
| 134 | SG House Singapore property and rental forum | 1881786 | 24696 |
| 135 | Honda Hookup Honda and Acura owners message boards | 1873514 | 179658 |
| 136 | Glamis Dunes Offroad and sand duning discussion forum | 1870480 | 28640 |
| 137 | Zatzy Swedish car forum | 1866121 | 19006 |
| 138 | Prelude Power Honda Entusiasts discussion board | 1836572 | 25998 |
| 139 | Audi World Audi cars owners message boards | 1824900 | 46200 |
| 140 | Turbo Buick Buick owners community | 1770992 | 25714 |
| 141 | Auto Power Swedish BMW owners forum | 1767849 | 43498 |
| 142 | REVscene.net Vancouver and Pacific Northwest import modified car community | 1721316 | 17062 |
| 143 | GM Inside News Chevrolet, Pontica, Cadillac and other GM brands forums | 1717885 | 45119 |
| 144 | Club GTI VW Golf GTI fans community | 1698623 | 46733 |
| 145 | S-Series forum Chevrolet S-Series trucks forums | 1685713 | 5684 |
| 146 | Supra Forums Toyota Supra owners message boards | 1683668 | 59676 |
| 147 | Great Lakes 4x4 4x4 message board | 1679370 | 11138 |
| 148 | KawiForums.com Kawasaki ATV Forums | 1675797 | 34338 |
| 149 | Prelude online Honda prelude owners community | 1671099 | 62658 |
| 150 | Black Mustang Club Forums Ford Mustang enthusiasts message board | 1657343 | 11864 |
| 151 | Seat Cupra Seat owners community | 1646855 | 38463 |
| 152 | UKGS'er BMW GS motorcycle community | 1625692 | 10028 |
| 153 | NLOC National Lightning Owners Club forums | 1617113 | 20418 |
| 154 | Club Lexus Lexus cars discussion forums | 1597444 | 46427 |
| 155 | Ranger Power Sports Ford Ranger owners community | 1582625 | 60301 |
| 156 | DTM Power BMW tuning forums | 1578729 | 68549 |
| 157 | Ford power Ford cars discussion forums | 1563962 | 10810 |
| 158 | WebClub Subaru Subaru owners community (in french) | 1555956 | 11609 |
| 159 | All Ford Mustangs Ford Mustang enthusiasts message board | 1553522 | 77296 |
| 160 | Autoracing.com.br Brazilian motorsports forum (in portuguese) | 1553457 | 7486 |
| 161 | Racers Den Car racing forums | 1546407 | 2381 |
| 162 | Volvo Speed Volvo performance and repair information | 1544598 | 27782 |
| 163 | Civic Type-R Civic Type-R owners forum | 1532921 | 27852 |
| 164 | Dallas Imports A local forum for Dallas import enthusiasts | 1481040 | 11130 |
| 165 | BTCF Finnish BMW enthusiasts | 1475024 | 35029 |
| 166 | Acura world Honda Acura forums | 1471373 | 41396 |
| 167 | V6 Performance Forum for owners of V6 powered cars | 1454779 | 36483 |
| 168 | Chevy Avalanche Fan Club Chevrolet Avalanche owners forum | 1448453 | 32145 |
| 169 | The Z28 Forums Camaro Z28 forum | 1434028 | 26855 |
| 170 | 1000rr Honda CBR 1000RR motorcycle forum | 1413824 | 15632 |
| 171 | Honda Society Honda owners community | 1403651 | 13576 |
| 172 | Ausrotary.com Australian rotary forums | 1395711 | 15802 |
| 173 | Club Grand Prix Pontiac grand prix discussion forums | 1384425 | 14900 |
| 174 | Dodge Intrepid Dodge Intrepid and Chrysler message board | 1373561 | 25029 |
| 175 | Acura Legend Acura Legend owners community | 1370573 | 23892 |
| 176 | Fiesta Turbo Ford Fiesta tuning message boards | 1370289 | 10631 |
| 177 | Dodge Forum Dodge owners community | 1368496 | 88700 |
| 178 | Club Civic Honda Civic drivers forum | 1364411 | 31958 |
| 179 | Auto Roule French automotive forums | 1343856 | 5688 |
| 180 | Fast Fours Australian automotive discussion forums | 1337947 | 20903 |
| 181 | Club VW Golf Espana Spanish VolksWagen Golf forum | 1323445 | 30722 |
| 182 | JDM Universe JDM Honda car enthusiasts | 1321456 | 42935 |
| 183 | Contour Ford Contour message board | 1312758 | 15733 |
| 184 | Auto Racing Brazilian car racing forums | 1308851 | 6529 |
| 185 | Team BHP Indian automotive forums | 1307421 | 49403 |
| 186 | Focus Fanatics Ford Focus message boards | 1306054 | 40325 |
| 187 | Briskoda Skoda owners community | 1295438 | 34441 |
| 188 | Modular Fords Mustangs discussion board | 1287556 | 34886 |
| 189 | MX5 Passion Mazda MX-5 owners community (in italian) | 1286639 | 4858 |
| 190 | Land Rover UK UK based Land Rover community | 1280901 | 40367 |
| 191 | MP3Car Car computers forum | 1273715 | 117350 |
| 192 | Club Civic Quebec Car clubs forum | 1267418 | 10394 |
| 193 | Max Bimmer BMW owners community | 1267230 | 15676 |
| 194 | 240SX Forums Nissan 240SX owners forums | 1257130 | 68124 |
| 195 | Tsikot Pinoy car lovers community | 1254965 | 73742 |
| 196 | Ford Forums Ford cars and trucks owners community | 1241217 | 66468 |
| 197 | Crownvic Crown Victoria and Ford V8 enthousiasts forums | 1209871 | 9093 |
| 198 | Honda Prelude Club Toronto Honda Prelude owners community | 1208309 | 5479 |
| 199 | MX6 Mazda MX6 forums | 1206012 | 40796 |
| 200 | Benz World Mercedes Benz owners forums | 1195229 | 53164 |
| 201 | Nissan forums Nissan owners message board | 1193052 | 81712 |
| 202 | V6Z24.com Chevrolet Cavalier Z24 owners community | 1190545 | 16804 |
| 203 | UBRF.org Western New York Automotive Forum | 1162012 | 8093 |
| 204 | Tuning.pl Car tuning forum (in polish) | 1154240 | 9643 |
| 205 | Autopia Car Detailing Forum | 1152373 | 58903 |
| 206 | Car and driver General automotive discussion | 1146383 | 16705 |
| 207 | Skyline Owners Nissan Skyline owners forum | 1130324 | 20324 |
| 208 | Auto Extreme Car discussion board (in German) | 1108403 | 96999 |
| 209 | Hot Rodders Hotrodding discussion forum | 1104422 | 78180 |
| 210 | STL Mustangs Ford Mustang forums | 1102376 | 6104 |
| 211 | Bilforumet Multi-brand cars forum (in Norwegian) | 1077532 | 18645 |
| 212 | Honda Motor Honda motor discussion board in Russian | 1071099 | 12965 |
| 213 | Car Audio Australia Australian car audio forum | 1054237 | 25497 |
| 214 | DSM talk Diamond star motors forums | 1040034 | 21582 |
| 215 | DSM Source DSM enthusiast community | 1036099 | 28311 |
| 216 | Freshalloy Nissan vehicles owners forums | 1029464 | 33805 |
| 217 | Honda Vision Honda discussion forum | 1024197 | 2180 |
| 218 | Pavement Sucks Forum about off-road vehicles | 999420 | 10864 |
| 219 | Miata.net Mazda Miata owners forums | 998300 | 19869 |
| 220 | Clio sport Renault Clio owners forum | 991798 | 9933 |
| 221 | Columbus Racing Car racing community | 978701 | 6065 |
| 222 | Auto Club Turkey Automotive Discussion (in Turkish) | 974549 | 62196 |
| 223 | The V Board Nissan Sentra discussion forum | 972071 | 11045 |
| 224 | Ricecop Forums Car enthusiasts discussion board | 955247 | 2774 |
| 225 | Club GTI GTI cars discussion forum | 952547 | 9878 |
| 226 | GTR.co.uk Nissan GTR and Skyline Owners Forum | 941638 | 18161 |
| 227 | Grand Am GT Pontiac Grand Am owners forum | 934037 | 16447 |
| 228 | 914 Club Porsche 914 Community Website | 931095 | 12794 |
| 229 | Ford vs Chevy Ford and Chevrolet message board | 911615 | 4522 |
| 230 | Maxrev Honda message boards | 905412 | 21457 |
| 231 | Blue traxx Yamaha ATV Forum | 897041 | 23749 |
| 232 | Honda Swap A Honda/Acura Technical resource | 891797 | 37024 |
| 233 | Ephatch Honda Civic owners forums | 888965 | 11774 |
| 234 | Camaro V6 Camaro and Firebird fans forum | 878345 | 12250 |
| 235 | Barry Boys Old cars pictures forum | 876950 | 17642 |
| 236 | Acura-cl Acura enthousiasts message boards | 871703 | 57390 |
| 237 | Pagenstecher Tuning and performance forums (in German) | 869091 | 27692 |
| 238 | Jabbas World Car discussion site | 867937 | 48596 |
| 239 | Yota Tech Toyota Offroad Forums | 866673 | 16121 |
| 240 | Piston heads Automotive discussion forums | 864230 | 29300 |
| 241 | Down Force Brazilian car racing forum | 851411 | 2450 |
| 242 | Sound Domain Car audio hardware forums | 851050 | 48475 |
| 243 | J-Body GM enthusiasts forums | 835400 | 17292 |
| 244 | No Pistons Mazda RX7 message board | 810159 | 30127 |
| 245 | Ultimate Subaru Subaru message board | 808052 | 26232 |
| 246 | Acura-TL Acura owners community | 787351 | 57396 |
| 247 | Focal jet Ford Focus owners community | 772099 | 12221 |
| 248 | Element Owners Club Honda Element forum | 753389 | 32090 |
| 249 | Lille Hardware Computer hardware community | 750996 | 5080 |
| 250 | Trailvoy Chevrolet Trailblazer forum | 749078 | 44196 |
| 251 | Car Styling Car modification enthusiasts community | 739508 | 18716 |
| 252 | Mopar Chat Car tuning and performance forums | 736264 | 48220 |
| 253 | Car Forum Misfits Cars message board | 731662 | 837 |
| 254 | SLUniverse Second Life forums | 727414 | 7116 |
| 255 | Golf4.de VW Golf 4 forum (in German) | 722228 | 14807 |
| 256 | Aulro Australian Land Rover owners community | 715983 | 9306 |
| 257 | Forums Hawaii Hawaiian automotive community | 709301 | 24351 |
| 258 | Carros de Rua Brazilian Car Sound & Tuning forum | 708534 | 22517 |
| 259 | Chicago Velocity Chicago car enthusiast message board | 705946 | 3523 |
| 260 | ClemsonTalk Clemson University forums | 699051 | 2883 |
| 261 | Airstream Forums Airstream caravane owners community | 698990 | 34246 |
| 262 | The Diesel Garage Diesel engines discussion forums | 691635 | 21124 |
| 263 | Corvette Action Center Corvette message board | 667522 | 21274 |
| 264 | StreetRace.org Estonian Streetracing forums | 665554 | 11216 |
| 265 | New England Street Riders Motorcycles forum | 650785 | 3237 |
| 266 | StreetRace.co.uk Car tuning and racing forum | 624215 | 11887 |
| 267 | PT Enthusiasts Chrysler PT Cruiser owners community | 615352 | 6999 |
| 268 | The Fiat Forum Fiat discussion board | 608930 | 13701 |
| 269 | Velocidad Maxima Car modifications forums (in spanish) | 607732 | 6442 |
| 270 | BMW 7er BMW 7series discussion board in German | 603825 | 10718 |
| 271 | Viper alley Dodge viper discussion forum | 594443 | 4491 |
| 272 | High lifter ATV and quad discussion forums | 585700 | 11067 |
| 273 | Texas Racing Scene Texas automotive forums | 549357 | 4829 |
| 274 | The Chicago Garage Cars message board | 546345 | 1643 |
| 275 | Teardrops & Tiny Travel Trailers Travel trailer forums | 533122 | 8840 |
| 276 | Driving Italia Italian racing forums | 526413 | 11146 |
| 277 | Eclipse Forums Mitsubishi Eclipse enthousiasts message board | 497616 | 13012 |
| 278 | Cars message board | 184662 | 6237 |
| 279 | Motorsport Forums - discontinued Car racing and rallying discussion board | 8459 | 19829 |
| 280 | Michigan Jeepers - discontinued Michigan Jeeps owners community | 310 | 4624 |