I guess I can post in here since I also own a 01 IS300 and 01 LS400. When I had my WRX(stock), my wife(in the IS300) and I raced from 40-100mph and noticed that the WRX only pulled about 3 cars away from the IS300(damm stock boost tapering). Once I added MBC it was close to 7-8 cars by 100mph and after TXS stage 2 she didnt even bother hitting the gas after a couple seconds of racing. The IS300 delivers good G-force but very smoothly. We have a auto IS300 with e-shift(this was done with traction control off and manual shift). The wife said she ran full throttle and just kept shifting at redline. We've traded the IS300 in for 03 Expedition 2 months ago but it was a nice ride though.