All I can say is WOW!
My two cents on this matter are:
I owned a 96 Impala before I bought my 94 SSEi. As far as the driving experience, the Impala kicked some serious a** on the freeway and on top end! The car drove like a dream and I think even handled better than my Bonneville! (Stock) My Bonneville, however, has way more off the line! I have raced some stock Impalas (94-96) and some built ones. The stock ones get roasted off the line until the Impala reaches it'* upper R'*. So that is my first thing........
Secondly, the car is rear wheel drive. I had brand new meats on all around and no matter what you do, the tires spin. That is a big advantage to the front wheel drive SSEi.
If you get the Impala to plant, I think it may just take off and get ahead.
Either way, I think the best kill I saw was from a guy in Vegas that has a twin turbo 96 Impala and of course some engine work, and I believe he ended up taking a pink from a turbo Supra! Not bad for a car that is around 6000lbs (estimate).