I had my GTD remapped to around 200Bhp & 350 Lb/Ft so that made that alot better but the tyres struggled with the extra power. This has the same torque but more bhp (218) and being RWD naturally has better traction. The biggest difference is however the gearbox, GTD was manual where as this is the ZF Sports Auto. It changes gear so fast its obscene! Depending on what driving mode you are in its either super smooth or changes with a bit of a kick. The figures to 60 are 6.3 i think with the auto so its no slouch. I had my GTD for 23 months and put 30k miles on it and it served as a good car with only a couple of minor issues but I was ready for a change, the BMW is definitely built better using higher quality materials and as such there is less road noise, that said, i think the engine is a little louder (maybe a stupid sound generator?) and more noticeable when you haven't got the music on. Its my first car with stop/start which is bit eery when it all goes quiet but it can be disabled altogether and is only active in a few modes anyway. I'm still very much learning about all its features.