Spring spacers
Check the springs to make sure that no spacers were left in them. A lot of people have spun out because the dealer forgot to remove all of the spacers. There are several on each wheel.
This car is very hard to spin if you know what you're doing. I 've done several track days & run the dragon a bunch, but the only time the S2000 has tried to spin without me expecting it was when the tires were cold or it was raining. I've never spun the car, but I know to be careful in the rain/cold.