Fastest I've ever gone was in my 1992 Taurus SHO. Speedo went to 140 and it would do all of it and then some. At 2AM on I-5 south going from Seattle to Portland one night I had the needle pegged and it still had more to go - but then my wife woke up. Didn't get to see how much more it had....

Not bad for what Road & Track called a Q-ship (a.k.a. sleeper) that looked almost just like every other grocery-getter Taurus out there)