pretty much as summed up above
ever so slightly longer - only way i found out is tailshafts arnt interchangeable (about 130mm in it)
when i remove the back seats etc - i get the cars weight down to about 1300 kg
given it doesnt have the hatch - id say the rear end is a little lighter
i dont own a supra so cant make an official comparisson
i do know that drifting is alot harder then it looks hahah, think thats got more to do with the driver though not the car cause it sits very flat