I have owned a Corvette Z06, Corvette, Porsche GT3 and now the M3.
You want the M3.
That said - if you are single, under 30 you want the Z06.
if you are married, over 30, have a full time job - you DEFINATELY want the M3.
A happy tire is a squeeling tire.
Happiness isn't around the corner - it IS the corner!