~14.7 stock on the turbo's, mid 16's on the NA's for gen 2 mr2's.
I don't really like the new gen 3 mr2's all that much, but the gen 2 is where the turbo fun is at anyway. Intake, exhaust, and a $40 boost controller @ 15psi and you in the 13's.
I've yet to take mine to an auto-x but it is quite competitive in its class apparently (Stock NA) and I'm sure thats where the fun is really at, being able to accelerate sooner through your turns since the weight is in the middle/back. Of course, there is the whole mid-engined aspect that is a PITA when it comes time to do serious engine work, but I think its worth it.