Thinking about making a racing or flying game? This list of freebies is as good of a place to start as any.
Keep in mind that the Low-poly Asset List also contain quite a number of vehicles if you don’t mind that style. I also need to highlight the asset creator Rulemakr have some stupidly cheap (tree dollars or less!) and cute car packs that are definitely worth a look.
As always, I’ll do my best to keep this list updated.