Maybe early cars have different ESP programming or something. My SRT-6 was built in May of '04 and I can burn the tires all day and do doughnuts all day. Drifting is also no problem with the "button" off. Strange. I don't seem to have a speed limiter either. Blasted right through 155 and kept pulling till almost 170 till I let off. I would think I had a MUTANT on my hands if it runs better 1/4 times... It doesn't appear to have any computer flashes. It gets right gas mileage and shows no other signs of tampering. I hoping it will crack into the 12s soon with the weather getting better. I ran a best of 13.36 @ 105.19 with 2.01 60 Ft. It was 97-98 degrees and 100% humidity when it did that.