And the L72 Vette,
"A gap of about 2.1 seconds is maintained from 70 mph to 100 mph"
Jeez, that's quite a bit. In fact it isn't even in the same ballpark.
I think that would come to almost 300 feet. Heck, that's almost a ballpark.
Ever hear anyone say, "Hey, that's a fast Vette. I'll spot you 25 car lengths"?
Don't forget, though, that most of that gap is due to the bad launch. The Viper gets a 1.5 second advantage just to 30 mph. 71% of the advantage is accounted for right there. Judging speed over time plots, the Vette has either
1) a crappy shift into 2nd (it's not likely that transmissions in those days were better, nor shorter-throw than today's), or
2) traction problems going into 2nd
Point being, look at the graph, and ignore the 0-30 segment. Once the Corvette hooks up, its acceleration curve is every bit as steep as the SRT-10's. Meaning, if you got these two cars side by side on a highway roll, there'd be nothing between them, from 70-100. The gap most certainly would not be 300 feet. The 450-hp version of the L72, with its quicker 0-140 time (no way is that thing going to match the SRT-10's 3.9 second sprint to 60) indicates that it will pull on the SRT-10 by quite a comfortable margin.
Any car that can stay with the Viper from 70 all the way through 100 mph, while not giving up any noticeable ground, is goddamn fast no matter how you look at it. And so far, this is the only thing (for the money) that can approach the Viper's accelerative performance; those other musclecars sure aren't going to do it.