25th, have you weighed your car and/or his car? A couple hundred pounds could make a world of difference.
Weight is definately something I was thinking about as well. I know what mine weighs, no idea what his or hers weigh. Mine will be lighter, as I have no rear seat, no smog stuff, no tailpipes, no sway bar. If I had to guess maybe 100-200 lbs difference possibly?
I guess this is all mute simply because without a good comparison or idea of his actual power, I can't really say much.