you could race to 250km/h then (airstrip of course). might be closer, but xany would probably still win although i'm loving full boost gear changes with my auto.
from wiki:
A special version of the 1JZ-GTE equipped JZA70, the 2.5 Twin Turbo R, had black/gray Recaro seats, a Torsen differential, additional braces to mount the diff, Bilstein suspension and uprated springs, Momo wheel and gear knob and matching interior trim. This was the fastest factory production version of the Mk3 Supra, running a mid 14 second 1/4 mile. This model had no ABS and was the lightest of all the MK3 supras.