Hey buddie..... You have been totally blinded by horse power figures, which don't mean s..t! Horsepower does not always relate in quick times! The Supra WAS a great looking car for it's time, unfortunately it dated very badly, especially those cheap headlights, oooh yuck. Also do your research the HKS GTR has craked well into the 7's.
And finally GTR's are not all about power, if anyone bought a GTR to make huge power they have rocks in their head. There are many cheaper alternatives than both the Supra and GTR, BUT what the GTR offers as an all round street, strip and track car there is no other car on the planet which can compete!
It's nick name GODZILA was made up for a reason
Thats my 2.2 cents (gst inc)