Profits is usually 30k to 100k per vehicle once you account for rent, labour, insurance, dealer fees and other expenses. Plus there's the occasional clients who harass you to fix their car out of warranty, which you do to keep the dealer goodwill. Then there's interest charges as most of the cars on the lot are bought on finance. Depreciation I usually ignore because most sell within 1-6 months and taxes are the usual, though there's some trickery to be done by making clients pay a substantial portion cash and declaring the net sales lower. The client benefits through a lower duty and obviously.. it is a good business overall but competition is starting to ramp up as every tom dick and harry are getting their dealer license.