Just to add to the body of testing here:

Just last week I was playing with this issue on my 01, and my tranny definately did not shift out of the gear I put it in, and the rev limiter works just fine (it's not fun, but it's fine). Granted, I was on flat city streets.

On another note, Daver is worried about going over 70mph... FWiW, I took a quick jaunt over to Detroit Monday, which is about a 4.5 hour drive. about 220 miles of that are 1-94 in Michigan, which is long, straight, and has a posted speed limit of 70.

Suffice it to say, our VXs can do speeds, um, in excess of 70mph for long periods of time and do quite well. And for those who haven't road tripped in their VXs yet, those Racaros will keep your back and butt feeling fine for quite a while. I never even got "numb butt."