Unlike many cars, I think with a lot of Mercedes, though mainly the older ones, if given the expected regular maintenance you can drive them pretty much how you want to.
That means, hard off the line, flat out for long durations, etc etc. These cars, if any, were designed just for that. The only rule I stick to in my 17 year old car is to wait about 10 minutes (until the engine is warm) before using full throttle or high revs. I think the rules are the same for most of us.
Just keep an eye on things and stick to the service schedule. If you're gonna run it for years and years and years then more regular oil changes are always nice. Learn to change it yourself - you'll enjoy the 'hands on'.
enjoy it, remember that you own it not vice versa.
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black