Supercar / racecar experience in Czech?

We are planning a 5 men trip to Czech (no wifes/GFs on board.. :) ). I would like to ask our local forumers experiences about the supercar experience / rental services Prague?

Ideally we would like to have a possibility to drive some fast cars on track. It could could be quite short, couple of laps for each would be enough.

Any experiences about these?
Ariel Atom 3, Ride in a Ariel Atom 3, Adrenalin experiences, Ride of dreams
List of cars * TopGearCar | TopGearCar

All help and suggestions for the trip would also be appreciated!