Update: Our work on a vocabulary for describing cars has now been integrated into schema.org:
Note that all the work above is aligned with GoodRelations; for simplifying the use of these new elements, we are just using the GoodRelations model in the schema.org namespace.
Manufacturers and dealers of cars can publish all characteristics and features of their vehicles on the Web, which empowers novel recommendation applications to fairly compare a vast amount of vehicle offers.
center|alt GoodRelations for Automotive
For more information, watch this video on "Semantic SEO for the Automotive Industry":