This subject ALWAYS seems to come up over and over on ALL forums whether discussing performance cars or motorcycles. OPINIONS vary from A to Z. Here's mine . . . /phpBB/images/smiles/icon_rolleyes.gif
Initially, for the first several hundred miles, keep speed way down and engine rpms down as well. Take only short drives and allow for engine cooldowns in between. (This I'm told is important because it helps to "heat treat" the metal parts inside the engine).
The reason for driving at relatively slow speeds is to avoid hard use of the brakes and to allow them to bed the pads. Also, as any motorcyclist will tell you, it give the tires a chance to break-in as well.
After the first few hundred miles, you can gradually apply more throttle and get up to higher speeds. During this phase, try to vary engine speeds as opposed to holding constant rpms. However, don't be too aggressive or work your way anywhere near redline.
A good rule of thumb: change the oil BEFORE your first time to drive really agressively. Be sure to check for metal filings and change the filter as well. Again, as is the case with high performance motorcycles, it is generally recommmended to change the oil within the first 1000 miles, some say to do this even sooner, say by around 500 miles.
Now, before anyone says this regime really is unnecessary, I don't disagree, but if you really LOVE your car you'll still do these things anyway to be very gentle before you break her "(censored)". /phpBB/images/smiles/icon_biggrin.gif