I am on my first MB and certainly not the last one... The 2000 SLK 230 has 40k miles and what I find with Mercedes Benz is that they are truly a well built machine however they do by all means need to have good preventive maintenace done to them just due to the nature precission machines. I have worked on many German built machines (non automotive) and found this to be true with thoses compared to others. Yes as a Benz owner it will cost some pocket change plus a little more to keep it running well...... ahhh the pleasure of driving the Mercedes offsets that so well.
2000 Black on Black SLK 230 with 5 speed manual transmission (4 years and going)
1996 Black Land Rover Dicovery with 5 speed manual transmission (6 years)