Super GT is also very aero-focused. Trust me. When I cover the races and see them chuck those cars into corners at full chat it just looks wrong! A car shouldn't travel that fast around a corner LOL
Super GT regulations allow for front and rear subframes to be designed at will, center chassis should be the same as the production car. Front & rear suspension layouts are also free (most use pushrod layouts) as is the placement of the gearbox (most use a transaxle type). However to keep costs down no carbon chassis are allowed as well as carbon brakes.