More or less cars that GT2?

I don't have the time but is there only 170-ish cars in GT3?  How many were in GT2?

Does winning races unlock the options to buy more cars?

Does winning arcade mode do anything for the simulation mode?

 
I don't know the exact number, but I believe it was somewhere around 600 in GT2.  :conf:
 
there are not anywhere near as much cars in gt3 as in gt2. Gt3 has 180+ and Gt2 has 500+. These numbers are after u unlocks most the cars not the start off number of cars.
 
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