I can tell you I went with the 328 after test drive because it is a beautiful engine that gives you everything you need in the city. Also, I truly believe there is no way in hell the N55 will not be redesigned in the near future. The close comparisons/performance was to move 328i units. But the 335 or whatever its next model will be tabbed will be an absolute beast compared to what we are seeing now. I had an 07 335i previously and no 328i unless it was modified was in the same league performance wise until the F30 just arrived on the scene.