The SRT's have the 6.1L HEMI and it will easily beat the Malibu with 0-60 in the 3.5 to 3.8 second range. The 5.7L Hemi in the Jeep has 0-60 times in the 6.5 to 7.0 second range, easily beaten by the Malibu 2LT. The Hemi Jeep tried once and lost and came back for a second time and I rubbed it in. And these are the '08 specs, older models were slower. Jeeps are pushing a ton of heft [4691lbs] and they have the additional drag of 4 wheel drive. The power to weight ratio is not as good on the Jeep R/T as it is with the Malibu.
The Charger is a different story. I should be able to to easily take an R/T AWD model. As for the RWD R/T it depends. If he has a full tank of gas and I has less than a quarter tank - I'm getting real close if not winning. If the driver outweighs me by 100lbs and he has a passenger that outweighs my wife by 100lbs - the R/T will be toast. My estimates are conservative. Chargers are 4,000+ lbs vehicles.
I live a couple miles from the famed Woodward Avenue. I'm sure I can land a race with one soon.