Well, I broke mine in around i think 3000 miles. What you DOis drive no faster than 55 MPH and try not to go over 3000-4000 RPM. After your first oil change you can exceed 55 MPH, but not two fold! Still baby your engine cause the parts need to get strengthen themselves.
What you DO NOTdo is race! Putting you engine through a lot of stress due to high RPMs is very very very very BAD! The RPMs should be kept at a minimum. Even though you have a fast car... its still a baby. The engine needs pampering.
I broke in to mine at 5000 miles, then I raced a spec V, who just got his and killed him.... sucks to be him. I think he didn't understand the whole break in process. I raced him again and still beat him... maybe the third time will be his charm...
Your car won't be able to live up to its potential if the engine doesn't properly run.
not going over 55 is a fable. if you can do 80 mph and keep it under 4,000 RPM you'll be fine. Speed makes no diffrence, you should attempt to drive it under 4,000 rpm (3500 would be better) all the time for the first 2,500 miles or so. Also you should not alow the RPM's to remain constant for long periods durring the first 1,000 miles (ie: no long road trips). After about 2,500 miles you can start to run up near 4500-5000 but you should not exceed those numbers and watch your downshifitng. After about 7,500 miles it should all be fair game.