I have a 2000E320 and I love driving it! However, I am not too aggressive in the city and therefore I keep the car in the "W" (winter) mode and it starts off in second gear. I like the smoothness of starting off in 2nd gear. I DO put it in the "S" mode when I am feeling energetic though.

I have 2 questions:
1. Will it hurt to leave the car in "W" mode and always start off in 2nd gear?
2. Does this "W" mode also save gas in city driving? ($3.66 for premium 93 octane at SAM'S here!)