In the french mag "Sport Auto" there are different formulas of driving tests :
Stage 1 : Ferrari 360 F1 and Porsche Boxster S (20 minutes per car) : 278 € or 40 min/car :498 €.
Stage 2 : Ferrari 360 F1 , Maserati 4200 Cambiocorsa, Porsche Boxster S : 348 € (20 min/car) ; 648 € (40 min/car) ; 908 € (1 hour/car).
Stage 3 : Murcielago , Ferrari 575 F1 : 358 € (20 min/car) ; 678 € (40 min/car) ; 958 € (1 hour/car).
For every test, you take the wheel with a monitor on your side and you can even have a ride in an F40.