If that's scary, then I'm Joie Chitwood.
My wife's '00 Honda CR-V can get up to 100 mph with not much complaint. The motor's not the quietest, but the wind noise is pretty much a constant volume from 70-100 mph, so it's really quite sedate. The car has always tracked straight and true, hardly a vibration from the steering wheel. I've driven several 1000-mile distances in it, and it's always been trouble-free, and the 146hp motor is adequate for it's heft. I don't really like the "bus driver" driving position for short trips, but the position is nice for touring/sight-seeing, and and it's quite easy on my body after 12 hours of driving. It could use a 5th gear, too.
As for cornering, that's another matter. Not reccomended unless you're used to it's bodyroll motions; even then, I have to take sharper turns with considerable easing of the throttle.
So my answer for the CR-V is 100 mph; the wife doesn't like me going faster than that in her car. It is a high-mounted Civic station wagon, when it's all said and done. I haven't taken the Lexus past 95 mph yet, but we'll see as I have a little weekend vacation planned in a few weeks...