I have had the SprintBooster on various different cars in the past. I like it.
The Z4 have the sport button allowing to manage the throttle response, but...
....the sport button also affects suspension, that is tedious with bumpy roads.
Does a 35i with SprintBooster respond "in normal mode" as weel as a 35i without SB in "sport mode"?
Or better?
Any experiences?