I'd like to suggest an improvement of Super GT. I think that the handling and the top-speed should be better on this car as it doesn't worth its own price for now.
In order to demonstrate it I will compare SGT with Alpha.
The price of SGT:
The top-speed of SGT with V8:
The price of Alpha:
The top-speed of Alpha with V8:
Overall, you might say that the handling of SGT is better than Alpha's. As for me, there are problems with SGT's handling too, it is really hard to turn on it, you always need to press 'SPACE'. Even Alpha turns easier with its high speed.
By the way, I would also like to see old mod of SGT on SAES once again. Atleast that mod had better quality and looked nicer. I can describe whats wrong with the current mod, but I don't need as there is already a topic about it > http://saesrpg.uk/topic/1844/bug-report-super-gt-vehicle-model-and-texture.