Take care and good luck with your struggle to keep the ownership over your own driving license (I had to hand over my license last year after a minor speeding fine...and had to use a bicycle for 12 days!!!).
Don't forget to watch your mirror when driving those kinds of speeds; there are a lot of faster driving cars on the german "autobahn".
Personally I like cruising at 160-170km/h (100-110mph) with my C250D; that speed is just perfect!
with a minor 600+k