I would like to know what the difference is in qtr mile time if the car was relying on only a mechanical limited slip rear vs. the electronic brake activated traction control-with the ESP turned 'off' on my car, both tires will start to spin out of the hole, but will switch from side to side as the computer tries to keep clamping on one brake/side, then the other...marks end up looking like ===---___----__---___ (and that is only if the computer doesn't over-ride the throttle and shut down power). My other car is a '72 Demon 340 with a 4 speed, and it is a lot more predictable to launch, and more consistent on a bad day than my SRT is on it's best-I guess the pure mechanical nature of it I find more predictable than the electronic 'Nannies' that oversee any exuberant driving that occours in the Crossfire!