A little history -
The '92- early '93 had a rear-center mounted battery. When they started exporting cars that had rear exhaust, the battery was directly above the mufflers and had to be moved. So they flip a coin and say which side do we put it on now? Coin says right, but oops, that's the side the fuel filler is on. Can't have spark sources near there. So, the battery gets wedged behind the driver's side rear tire (great for roundy-round racing, but sucky for road racing corner weights). So, why don't we put the fuel filler on the other fender? Tooling cost for both the fender and the gas tank. Along comes the GTS and a chance to get the corner weights right and what happens? Let's keep the same gas tank for both GTS and RT/10. SS, DD. Ever try to adjust the toe on your rear tires? Piece of cake on the right side, PITA on the left because of the battery blockout cover.