[Burrcold]

Given that you already have a G20 330i, I very much doubt moving to the M340i is going to solve anything. If anything, the M340i feels less darty and light on its feet vs the 330i (it's way more powerful but feels heavier and the steering isn't as good). I would say to stick with your current setup (kind of the best of both worlds going from one car to the other). Or level up and get something very exciting (G80 M3, Supra is a good thought, Giulia Quad?).