The hydraulic lifters on my '07 Z4 3.0i (Sports Package) were replaced yesterday and I am trying to determine whether the engine is sounding better. I am probably over-analyzing, but I wanted to seek feedback on this anyway: I have noticed that the steering has a vibration that almost seems like I can 'feel' the engine. I feel the vibration when the vehicle is stationary. The vibration isn't bad, but it's definitely there. What I want to know if if this is the sports car feel or if something with the lifter replacement didn't go as planned.