My cousin found it on SVT. Apparently it dosen't have exhaust, but it could have CAI and Hypertech? IDK, it freckin fast!

 

Pretty fast for an SRT-8 anyway...

 

Stock for stock, the new one is probably a little quicker, but only due to a more aggressive camshaft.
The old hemi heads outflow the new ones so the only thing holding it back is the camshaft. You should go to a dragrace sometime and pay attention to the stock appearing class cars. Many of them are in the 11's.

 

I think if you could address the traction problems of the old car, it would probably beat the newer car by a fair margin.