I've tried the Senior US X30 and it's the best kart mod I've ever tried. Really accurate, stable and with the correct steering inputs like IRL. Also better than the OK Senior 3.0 which has also been published here. It's a pity that the X30 engine isn't so powerful if compared to OK ones... Dear DRkarter, would it be possible to have the same physics and same chassis of this US mod but with an OK engine? And the same physics but with a KZ chassis and engine?