I've had the X3 at sustain speeds of around 120 MPH and it tracks with no problems ( until the wife tells me to slow down) The Corvette has seen 170 MPH, (without the wife in the car) and it's a stable ride still willing to do more. Just for the record I am a BMW guy, My first BMW was a 1969 2000, I've also had two 3 series (latest one being a 2006 325xi), two 5 series, latest being a 2008, 528, and two 7 Series, and of course the X3. The biggest mistake I did was to try a Mercedes, NOT again, next year my E class is giving way to a 2012 535. By the way, living here in Germany with a BMW is rewarding BUT BMWs are a dime a dozen here, now drive down the road with a beautiful Corvette,, it's amazing how everyone has to take a double look at it , Unbelievable.
Red 2009 Corvette, Red 2005 X3, Red 1990 Camaro RS