All BMW's (U.S. spec)have a limited top speed of 250 kph (155 mph), only exceptions are v8 M3 limited to 161mph and Alpina's. Alpina (a company like Saleen/roush is for fords) sells the B7 a modified 750i no limiter will go 189mph, but still has a warranty and is serviced at BMW dealers.
the new BMW m5 goes up to a 205mph which is brillinant and 255 brake horse power
The BMW M3 323i Does not exist.
i had mine up to 130 mph but it didnt fell good need a hard top for driveing fast
It depends on which model you are referring to.
155 mph
200-300 miles
top speed of the E63 bmw m6 is around 211
it goes 50000 mph
217 mph
It all depends on the engine
160 mph
The X3 reaches a top speed of up to 210 km/hour. A sports package will also be available with a top speed of up to 224/km/hour. http://www.usautoparts.net/bmw/models/x3/index.htm