Originally Posted by maswastage
Even in stock form the car will handle the track quite well. I recall an Evo magazine test where the D was only about a second slower than an m3 round their track, and was actually a hair quicker than a 335i. If you want it to rival you old Boss, you need a JBD to push the whp up to 320ish, and probably an LSD. You'll end up with a comfortable 4 door sedan that's nearly as fast as the boss and still gets over 40mpg on the highway.
Hell yeah +1. 40+mpg with gobs of torque and power. Im all in.