| Rank | Board name and description | Posts last week | Posts | Members |
| 1 | Forocoches Spanish cars message boards | 296473 | 47099361 | 423371 |
| 2 | Motor-talk.de German automotive discussion forums | 71874 | 22391597 | 1373353 |
| 3 | Bimmerforums BMW car brand message boards | 58823 | 17326924 | 245727 |
| 4 | S2KI Honda S2000 owners community | 43947 | 16713339 | 85710 |
| 5 | Boostcruising Steet cruising and automotive forums | 28750 | 7346629 | 109133 |
| 6 | Houston imports Houston import race scene forums | 22566 | 9920727 | 45502 |
| 7 | Bimmerfest BMW owners community | 19978 | 4577489 | 174210 |
| 8 | EvolutionM Mitsubishi Lancer enthusiasts Community | 19827 | 7623114 | 114025 |
| 9 | Ferrari Chat Ferrari fans and owners community | 18743 | 5099791 | 72137 |
| 10 | Elaborare Italian car and bike tuning community | 17684 | 13356486 | 66933 |
| 11 | Forums Hawaii Hawaiian automotive community | 17111 | 1027989 | 28232 |
| 12 | VA Driven Virginia automotive ethusiast forum | 17063 | 5665201 | 42693 |
| 13 | Corsa Sport Vauxhall, Opel, and Holden message boards | 15777 | 6256997 | 31503 |
| 14 | Turbo Bricks Car performance forums | 14879 | 2710815 | 29467 |
| 15 | NICO forums Nissan and Infiniti message boards | 14638 | 5212557 | 138767 |
| 16 | M3 Forum BMW M3 owners community | 13007 | 4322688 | 112274 |
| 17 | Modded Mustangs Ford Mustang tuning forums | 12525 | 2414916 | 29864 |
| 18 | Scoobynet Subaru Impreza owners community | 10493 | 8778567 | 106249 |
| 19 | MB world Mercedes-Benz owners message boards | 10128 | 3981468 | 129158 |
| 20 | TDI Club VW TDI engine message boards | 8253 | 2729451 | 71287 |
| 21 | 502 Streetscene Automotive Discussion Forum | 6904 | 2665317 | 7904 |
| 22 | IWSTI Subaru Impreza STI owners community | 6332 | 2666777 | 50894 |
| 23 | Performance forums Cars and motorbikes performance forums | 5940 | 2022571 | 35604 |
| 24 | Calais Turbo Australian car forum | 4711 | 2166195 | 29495 |
| 25 | Honda-Acura.net Honda cars message boards | 4626 | 3871956 | 104170 |
| 26 | Track Forum Racing discussion board | 4459 | 2149911 | 9303 |
| 27 | Columbus Racing Car racing community | 3891 | 1069420 | 6268 |
| 28 | I-Club Subaru owners community | 3680 | 2752207 | 37202 |
| 29 | Honda Society Honda owners community | 3193 | 1464594 | 13970 |
| 30 | V6 Performance Forum for owners of V6 powered cars | 3152 | 1516928 | 42346 |
| 31 | Probe Talk Ford Probe owners forums | 3124 | 4307394 | 30581 |
| 32 | Hot Rodders Hotrodding discussion forum | 2779 | 1161726 | 81678 |
| 33 | Max Bimmer BMW owners community | 2141 | 1298880 | 16485 |
| 34 | Super Honda Honda owners community | 1751 | 4039910 | 149528 |
| 35 | Nissan forums Nissan owners message board | 863 | 1212126 | 85511 |
| 36 | Mopar Chat Car tuning and performance forums | 499 | 746490 | 49545 |
| 37 | Racers Den Car racing forums | 228 | 1555165 | 2496 |