Supercar selection?

So my wonderful wife decided to buy me an early b-day present, with the opportunity to have a 3 lap go around Killarney Race track Cape Town in one of the following cars:

Aston Martin DB 9
Audi R8
Nissan GTR
Lamborghini Gallardo
Ferrari F430

And some other cars not mentioned on the voucher.

Which car would you recommend and why?

Have a nice weekend everybody!

Cheers!