In VA, it's easy.... to sell cars.. just like 25 questions or whatever... I did it in less than 1.5 min and only missed one..... to run a dealership.. an additional test.. didn't have to take that one but my boss made me learn all the info anyway... most of it is on fines, regulations, and tags... (taxes too)... you can download all the info you need to memorize (I think it was 15-20 pgs) from the DMV, but don't stress about it... it's almost as insulting as the postal service exam... that should cover the barest of the basics... look it up with VAs DMV, if there are still any questions, PM and I can ask some friends who were in the business longer....

P.S. the total amount of dedicated space to selling cars is listed in the DMV info so that should work as a FAQs, and as I recall, you need at least 7 cars... but I may have misremembered... I know you don't even need a license to sell cars as a rep if you sell less than 5 a year. Sorry if this is a bit disjointed.. in a rush... but yeah.. pm if you need more, but that should get you started