| Rank | Board name and description | Posts | Members |
|---|
| 1 | Forum Auto
Automotive discussion (in french) | 24412819 | 427603 |
| 2 | S2KI
Honda S2000 owners community | 16616587 | 85250 |
| 3 | Elaborare
Italian car and bike tuning community | 13315678 | 66659 |
| 4 | Lay it low
Lowriding fans message boards | 10035074 | 56539 |
| 5 | Houston imports
Houston import race scene forums | 9871661 | 45361 |
| 6 | Boostcruising
Steet cruising and automotive forums | 7281182 | 108444 |
| 7 | Jeep Forum
Jeep message boards | 7171807 | 215268 |
| 8 | Corsa Sport
Vauxhall, Opel, and Holden message boards | 6223657 | 31368 |
| 9 | Automotive Forums
Multi-brand automotive message boards | 5606188 | 632257 |
| 10 | NICO forums
Nissan and Infiniti message boards | 5180291 | 137635 |
| 11 | Ford Truck World
Ford trucks forums | 4593333 | 154775 |
| 12 | Super Honda
Honda owners community | 4035644 | 149295 |
| 13 | MIGWeb
Vauxhall - Opel message boards | 3970852 | 48402 |
| 14 | Honda-Acura.net
Honda cars message boards | 3862590 | 104006 |
| 15 | Civic Forums
Honda civic enthousiasts forums | 3750455 | 49373 |
| 16 | Beyond.ca
Canadian car forums | 3089037 | 66587 |
| 17 | Edmunds
Automotive Forums | 2829351 | 397694 |
| 18 | TDI Club
VW TDI engine message boards | 2710537 | 70555 |
| 19 | Mercedes Shop
Mercedes owners community | 1961753 | 39955 |
| 20 | Prelude online
Honda prelude owners community | 1671099 | 62658 |
| 21 | V6 Performance
Forum for owners of V6 powered cars | 1510339 | 41752 |
| 22 | Club Grand Prix
Pontiac grand prix discussion forums | 1384425 | 14900 |
| 23 | Nissan forums
Nissan owners message board | 1210132 | 85132 |
| 24 | Crownvic
Crown Victoria and Ford V8 enthousiasts forums | 1209871 | 9093 |
| 25 | Car and driver
General automotive discussion | 1146383 | 16705 |
| 26 | DSM talk
Diamond star motors forums | 1040034 | 21582 |
| 27 | Freshalloy
Nissan vehicles owners forums | 1029464 | 33805 |
| 28 | Miata.net
Mazda Miata owners forums | 998300 | 19869 |
| 29 | The V Board
Nissan Sentra discussion forum | 972071 | 11045 |
| 30 | Club GTI
GTI cars discussion forum | 952547 | 9878 |
| 31 | Sound Domain
Car audio hardware forums | 851050 | 48475 |
| 32 | J-Body
GM enthusiasts forums | 835400 | 17292 |
| 33 | No Pistons
Mazda RX7 message board | 810159 | 30127 |
| 34 | Car Forum Misfits
Cars message board | 768644 | 1007 |
| 35 | Car Styling
Car modification enthusiasts community | 742065 | 19213 |
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