I have 4 different German cars in the pass 3 years. This is what I have found.
Don't touch German Cars

1. MB E240. have it for 10 months and need to change the air-cond and brake systems twice. Break down on the road 3 times and service 9 times.

2. VW Touareg, Back to service after 7 days on the road. Gear box keep having funny noise and sold it after 9 months.

3. BMW 330i E90, back to service 9 time after using it for 9 months. break all my records. Still using it but will sell it after Chinese New Year for a LS460

Japanese cars that I have used before never give me any trouble. That is why I am waiting for my Lexus LS460 delivey now and sold the BMW

If you are a car lover. You will not ask the driver to drive your car. I never use a driver on any of my personal car.

Update on the LS460. 5.6' 0-100km. faster than my BM330i 6' 0-100km .......Good. It even faster than a 997s

All the German is band new when I have it. Its just not good at all. I am going back to Japanese now.
Its not how much you pay for it. Its just not right these German  car. I have not mention my 4th car in above. Its a Porsche 997s band new only 10 months but back to service 6 times with 1 gear box change. 997s is my dream car and I will keep it but only use it on Sunday. However, for a 1.5 million car it is not acceptable for the type of trouble I have.