Should I get Audi A8
 

Hello, I'm planing to get my new/first car, and I want it to be Audi A8, I was already driving A6 and I loved it, but I just don't want any other car thant A8, maybe A6 or BMW 7. So I can get any of these for about 5 to 6 grands (euros), should I get A8, gas cost is't problem, I just want a petrol one NO Diesel. Cars are in good condition.

A8(2004)
A6(2006)