Edmunds does performance testing on the NON-SRT model Challengers in their latest reviews. Maybe they have a huge weight problem as its immense amount of power doesnt seem to give an edge over the mustang...or cars with much fewer horses......
Results
Challenger RT 5.7 liter 375hp.......0-60 in 5.9 seconds
Challenger SE 3.5 liter 250hp.......0-60 in 8.1 seconds

For comparison
1. Ford mustang V8: 300hp 0-60 in 5.2 seconds
2. Ford mustang V6: 210hp 0-60 in 6.5 seconds
3. Infiniti G35 330hp 0-60 in 5.5 seconds
4. BMW 335i 300hp 0-60 in 4.8 seconds
5. Pontiac G8 GT 361hp 0-60 in 5.3 seconds
6. Accord Coupe V6 268hp 0-60 in 6.3 seconds
7. Impala SS 303hp 060 in 5.7 seconds
all these cars have alot less horsepower but in the ball park with the RT Challenger or faster......the 2002 Camaro SS had 320hp and 60 in 5.0 seconds