My personal opinion, and I really wish I could afford to do it, would be to take a 09 Challenger and drop in a Viper ACR motor. I know it would take some work and be very expensive, but I think that would be a totally awesome sleeper mod there. With the 8.4L/600-hp/560-lb-ft OHV 20-valve V-10 motor there would be a ton of torque and pulling power all the way from stop to top end. I think that Challenger would flat fly if it had wings then.