If you live near Connecticut, and are willing to spend the money, why don't you take driving lessons at Limerock Race Track.
But The old 745i, in new condition did top out actually at 227 km/h or exactly 141.0512606378748 MPH.
Many manufacturers really, extend or exaggerate the car's actual top speeds on the speedometers. They like to add that type of "touch" to the car, so the car doesnt look wimpy to the buyer. Who would want to buy a car, that only has a top speed of 120? I know some of the SUVs only go as high as 110 or 120 but thats different. Like, my moms Acura, it says on the speedometer that it can go as high as 175, but, it's a V6 for cryin out loud.
Heres the website
http://www.bmwinfo.com/27180.html