Added to the above a race in my Coupe sounds a lot more dramatic than that! He got a crap start - barely broke traction and changed well below peak power revs. He also backed off before the other guy overtook.....
What you have to consider too is that inside the 3.0i you got bwwarrrrppppp... in the 2.0TT diesel you get, whirryyyy lalalalla drrrrtyyyyy wiiisssshhhhh, lalalalala...
Having owned a (admitedly standard) 123d before i was given a company car and thus was able to swap the 123d for the Z4.
i can honestly say the 123d is a fabulous little car and if i only had one car it would be the car i would go back too!
but i can also say that no amount of messing around under the bonnet would make it as quick as my Z4 3.0si, short of putting a 335d engine under the hood!