| Rank | Board name and description | Posts last week | Posts | Members |
| 1 | VW vortex forums Volkswagen and related car brands discussion boards | 143972 | 57114749 | 492684 |
| 2 | NASIOC Forums Forums of the North American Subaru Impreza Owners Club | 78535 | 27734523 | 219450 |
| 3 | Bimmerforums BMW car brand message boards | 56347 | 17204298 | 243534 |
| 4 | SG House Singapore property and rental forum | 41555 | 2641971 | 31980 |
| 5 | E46 fanatics BMW 3-series owners community | 31697 | 10624303 | 152395 |
| 6 | Pirate 4x4 4x4 message boards | 30842 | 9117636 | 145725 |
| 7 | Houston imports Houston import race scene forums | 22427 | 9873896 | 45364 |
| 8 | VA Driven Virginia automotive ethusiast forum | 19923 | 5628041 | 42278 |
| 9 | Bimmerfest BMW owners community | 19080 | 4535725 | 172723 |
| 10 | Mustang world Ford Mustang fanatics message boards | 16193 | 5647635 | 48033 |
| 11 | Tampa Racing Car racing community | 15852 | 5358096 | 72035 |
| 12 | Forums Hawaii Hawaiian automotive community | 12590 | 1019085 | 27798 |
| 13 | SXOC Nissan 200SX owners club forums | 11564 | 4882970 | 22161 |
| 14 | Great Lakes 4x4 4x4 message board | 10101 | 1854071 | 12710 |
| 15 | 3SI Mitsubishi 3000GT/Stealth forums | 9971 | 5102579 | 30370 |
| 16 | DFWstangs Ford Mustand discussion forums | 9567 | 5091016 | 36629 |
| 17 | TDI Club VW TDI engine message boards | 8214 | 2711522 | 70615 |
| 18 | 3.8 mustang Ford mustang owners community | 6922 | 4040450 | 22972 |
| 19 | MIGWeb Vauxhall - Opel message boards | 6051 | 3971626 | 48416 |
| 20 | Honda-Acura.net Honda cars message boards | 5085 | 3863035 | 104020 |
| 21 | Cars message board | 4543 | 247672 | 988 |
| 22 | SLUniverse Second Life forums | 3790 | 807756 | 8615 |
| 23 | Jeepsunlimited.com Forums Discussion and marketplace about Jeeps | 3100 | 4101367 | 102835 |
| 24 | Super Honda Honda owners community | 2951 | 4035867 | 149310 |
| 25 | Honda Society Honda owners community | 2672 | 1457949 | 13928 |
| 26 | Airstream Forums Airstream caravane owners community | 2332 | 749430 | 37611 |
| 27 | Acura world Honda Acura forums | 1501 | 1503984 | 43802 |
| 28 | ClemsonTalk Clemson University forums | 237 | 704027 | 2957 |