The Celica / GT models today is an optional car. I think the RSX has a bit more room inside for passengers. Both celica Gt and Rsx have good aftermarket parts.TRUTH AND ONLY proven on the STREETS.The RSX is Just build up off the Reputation of the ACURA INTEGRA Type- R, GS and GSR's popularity.and this new car with a new Vtec engine for the tuners to play with and race on the streets is Prime.RSX is todays Integra. if Celica Gt had of spun off the fame and shared the parts of the SUPRA Twin Turbo with the world famous 2JTZGE engine Please belive that we would see just as many Celicas on the streets as Acuras and Hondas.