maybe thats only the GTS numbers, but how many total celicas? (including GT models)
im sure there are a lot of them! And they are nearly identical (different wheels and a spoiler)
I test drove the celica GTS after my si was stolen, i only had intake and exhaust on the Si, and the celica didnt feel at all faster, or even torquier , given that it has 20lbs-ft more than my Si... the powerband was even peakier than the si's and narrower (less time in the agressive profile of vvti)
the gearbox i found confusing at best (the orientation of the gears are kind of sideways) and the car is VERY small inside, and has very poor visibility out the back and rear side windows...
id say keep your RS or get the WRx..