@wix
hope you didn't find my correctio rude,... still it's a great car and infact i have one too (it's a 1990 300E - dad bought it new & imported it in 1990). Phenomenal shape no doubt.
@khitran
you are 100% right, E will make the car launch from 2nd gear and will shift up to the next gear earlier and smoother than if you had it in S. However i shoudl point out that you cannot switch between the 2 modes unless the car is at a halt and you take the shift know up to P and back (you CAN flick the switch but the changes will not happen).
@Newton
Good luck buddy and may you have a great life.