went from M3 to a CTS-V to a Z06. Now, I'm back to the M3. Nuf said. Take it from me - it's the greatest car you can own.
CTS-V: awesome motor, gadgety interior although severely lacking in build quality, both inside and out.
Z06: Unbelievable soundtrack with tear your face off speed and handling, however, along with through your back out suspension. Terrible seats, NAV, sound system and overall interior quality. Nothing is faster for the money.
M3 - great speed, great sound, great handling, exceptional build quality and styling. Winner, winner, chicken dinner.