780Tuners Forums: Discussion forum for Import Drag Racing, Autocross and show and shine competitions.
Aussie V8: An Australian community of car enthusiasts comming together to talk about their one love.
Auto-Forums.net: Discussion of automobiles and popular brands, e.g. Audi, BMW, Ford, GM, Nissan and Toyota.
Automotive Arena: Features forums about car makes, videos, and drag racing. A classified section is also available.
Autopia: Detailing enthusiast community. Discussion about car cleaning and polishing.
Battleboards.org: Automotive battlefield-type message board where flaming is encouraged.
Beyond Car Forums: Car discussion groups and forums for enthusiasts from around the world.
Car and Driver forums: Provided by one of the leading automotive magazines. It features discussions with experts, professional journalists, and offers a wide range of automotive related forums.
Car Commons: A place for enthusiasts to find general discussions about cars and trucks, as well as sections about specific models.
Car Forums: Offers Domestic car, Asian import, European import, classic car and SUV boards. Also contains regional forums.
Car KB: CarKB is an online community for car consumers and enthusiasts.
CarSPIN Forums: Auto forums featuring general topics, luxury cars, mainstream cars, SUVs, sports cars, an automotive law section, and more.
CarsTalk.net: Forum style access to car related Usenet groups.
Cruise-Scene.com: Modified car community.
CRunderground.com: A forum and resource for car performance enthusiast. Contains media and information.
DomesticMuscle.com: A community to discuss domestic muscle cars of all types. Usenet feeds online.
GTcars.ca: GTcars is a Canadian car forum dedicated to the discussion of all brands, makes, and models.
JDMCentral.net: The place for all import auto enthusiasts.
MainstreamTopics.com: General automotive forum. Features discussions about domestic and imported cars, trucks, accessories, and multimedia.
Massdriven.com: A car forum for Massachusetts and New England residents. Offers picture and video uploads and localized classifieds section.
SportsCarForums.com: Specializes in performance and sports cars. Topics include comparisons, spy shots, modifications, motorsports, and multimedia.
Supercars.net Community Forums: Community oriented forum about cars.
Talk about Autos: A comprehensive discussion forum and Usenet archive for serious auto enthusiasts. Includes discussion about parts, mechanics, lemon laws, repairs, restoration, racing, and financing.
The V8 Owners Forum: A forum about anything related to V8 engines. Links database, and a classifieds section.
TunerCarz: Car forum for all makes and models.
Turbocrime.co.uk: Offers tuning advice and parts on turbo and naturally aspirated cars.
Turborides: A public discussion forum that specializes in turbocharged cars.
Tyresmoke.net Forums: A forum for owners, enthusiasts and lovers of performance cars to discuss cars, modifications, performance, and tuners. Specializes on Audi, VW, BMW, Porsche, TVR, and Subaru.
Usenet Cars: Offers discussions about specific models, technical sections, and information about maintenance, driving and racing.