Here are some basic specs:

Acura TSX:
2.4 liter 4-cyl
205 HP @ 7000
164 ft/lb @ 4500
6 spd MT
3257 lbs
22/30 mpg

'05 Lexus IS300:
3.0 liter inline 6-cyl
215 HP @ 5800
218 ft/lb @ 3800
5 spd MT
3255 lbs
18/25 mpg

Lexus IS250:
2.5 liter 6-cyl
204 HP @ 6400
185 ft/lb @ 4800
6 spd MT
3455 lbs
20/29 mpg