You'd be suprised at the amount of high-end cars I've driven without a license. Heck, when the Z3s first came out, the dealer GAVE me the car for the day, told me to have fun, and never even looked at my license. Guess he figured he had my car sitting in their lot, so I must have a license and insurance.
Incidently, I've been to this dealership before, my cousin got his Ferrari's 30K service done there. Killer place, with a VERY high-end clientelle. Guy must have had balls of steel to pull off such a stunt, but it appears he planned it quite well and probably won't be caught.
p.s. I've got an F50 for sale in the classifieds, check it out!