They're still hairdressers cars - overweight, bad handling girly-girl show-no-go car...
This is what a 440hp SLK peforms like in the real world...
2 Thumbs Way Down
http://www.caranddriver.com/article....rticle_id=2783
http://www.caranddriver.com/article....rticle_id=2785
If you have to tune something - at least start with a decent car....
http://www.caranddriver.com/article....rticle_id=2834