| Rank | Board name and description | Unique visitors daily | Posts | Members |
| 1 | NASIOC Forums Forums of the North American Subaru Impreza Owners Club | 34406 | 27726788 | 219369 |
| 2 | Bimmerforums BMW car brand message boards | 33153 | 17198632 | 243418 |
| 3 | BMW FAQ BMW enthusiast Spanish board | 25388 | 7064162 | 92994 |
| 4 | NICO forums Nissan and Infiniti message boards | 24181 | 5180291 | 137635 |
| 5 | IH8MUD Land Cruiser Forum | 12259 | 4776673 | 45899 |
| 6 | TDI Club VW TDI engine message boards | 11472 | 2710537 | 70555 |
| 7 | IWSTI Subaru Impreza STI owners community | 10910 | 2651653 | 50476 |
| 8 | Zilvia Nissan 240sx discussion board | 9959 | 3040423 | 69816 |
| 9 | DTM Power BMW tuning forums | 9862 | 1578729 | 68549 |
| 10 | M3 Forum BMW M3 owners community | 9233 | 4292055 | 111674 |
| 11 | Honda Swap A Honda/Acura Technical resource | 9210 | 891797 | 37024 |
| 12 | The Fiat Forum Fiat discussion board | 8867 | 608930 | 13701 |
| 13 | Volks Zone UK based Volkswagen Discussion group | 8753 | 3701155 | 45221 |
| 14 | Cadillac Forums Forum for Cadillac owners and enthusiasts | 7525 | 2031399 | 99069 |
| 15 | Turbo Buick Buick owners community | 4484 | 1876196 | 26591 |
| 16 | EvolutionM Mitsubishi Lancer enthusiasts Community | 4341 | 7581471 | 113294 |
| 17 | I-Club Subaru owners community | 4087 | 2744770 | 37087 |
| 18 | Land Rover UK UK based Land Rover community | 3798 | 1300669 | 41528 |
| 19 | LS1 Chevrolet Camaro message boards | 2935 | 2106779 | 46965 |
| 20 | Prelude Power Honda Entusiasts discussion board | 2480 | 1962123 | 27781 |
| 21 | Club Grand Prix Pontiac grand prix discussion forums | 2368 | 1384425 | 14900 |
| 22 | Club3G Mitsubishi Eclipse owners forums | 1962 | 1955003 | 18499 |
| 23 | No Pistons Mazda RX7 message board | 421 | 810159 | 30127 |
| 24 | Honda-Acura.net Honda cars message boards | 194 | 3862590 | 104006 |
| 25 | Mini 2 Mini owners community | 46 | 3305791 | 43233 |
| 26 | VW vortex forums Volkswagen and related car brands discussion boards | 35 | 57100553 | 492548 |
| 27 | Toyota Nation Toyota cars enthusiasts forum | 24 | 1897786 | 103396 |
| 28 | Honda tech Honda cars enthusiasts forums | 14 | 34644340 | 297178 |
| 29 | Ranger Power Sports Ford Ranger owners community | 14 | 1643072 | 62566 |
| 30 | LS2 General Motors discussion board | 4 | 12011673 | 24396 |
| 31 | WebClub Subaru Subaru owners community (in french) | 4 | 1579744 | 10496 |
| 32 | Michigan Jeepers - discontinued Michigan Jeeps owners community | 3 | 310 | 4624 |
| 33 | LS1 Tech Chevrolet and GM enthousiasts discussion | 2 | 11114678 | 158441 |
| 34 | RX-7 Club Mazda RX-7 forums | 1 | 4415016 | 95073 |
| 35 | Ephatch Honda Civic owners forums | 1 | 967117 | 12928 |
| 36 | 240SX Forums Nissan 240SX owners forums | 1 | 1268618 | 69080 |