brandjur, I have a '79 450SL. One of the things I love about my car is the acceleration. At any speed, if I put my right foot down it GOES. I know you have less horsepower and more pollution control on yours, but I would think you could swap the rear end and get better performance. You might lose a little gas mileage, but big deal. I get 17-18mpg on the highway and the acceleration from 60-90mph is great, without going into passing gear, just slowly putting my foot down. Give it a try, good luck.

sbr
'79 450SL, 75,000mi.
milanbraun/ palomino
lake st. croix beach, mn.