i pulled 1.8 on street tires in a stock drivetrain 240 on street tires my first few times even out. I was then able to take it to a 1.6 on M/T. this is at ~300hp I am sure they were making much more then that. I just don’t think its worth all the money you need to spend to make a DSM last and be consistent.
the lexus sc300 is what i had in mind on the lexus front. I have done some budgets with going in that direction. A little more expensive then a 240 but the 2JZ would kick ass in the long run.