Just got back from a great day in South Carolina at the BMW Performance Driving center. I have to say that after getting behind the wheel of the 135i, 335i and amazing M3, I am impressed beyond belief!
The driving school featured the (relatively) new Dunlop Direzza Z1 Star Spec, and even the instructors were impressed by the amount of grip they provided (even once "broken in").
The Dunlops were very predictable on the wet skid pad, and exceptional on the small road course on site, and garnered some glowing reviews from all.
Check out our test results at the link below and see if they are right for you!
And as for the M3, I highly recommend picking one up if you can!! ;-D