I picked up my '99 CLK 430 for a song...and at 131,000 miles it runs and drives like new.
The interior is flawless, leather seats show no wear and tear whatsoever. Power to spare, which is very evident when pulling onto an interstate vs my prior car, a V6 Accord.
However, the Accord's ride was far better, the trade-off of a drivers' car. It is, however, much quieter and despite being 9 years older, feels more solid and well-built (it's German-built, mine has AMG trim) than the Accord. Now the rest of the story--it's a salvage car, was in an accident that took out the drivers' side front fender and bumper. Was repaired and cannot tell it was ever touched, no consequences are evident.
Power, solid feel on the road, luxury features. I have no intention on selling it, planning to keep it for 15 more years and sell it as a classic, which it absolutely will be.
What the 450SL is to the late 70s/early 80s, the CLK 430 will be to the late 90s/early 2000s. I have absolutely no doubt.
Although good mileage (25 highway) premium gas required is really expensive.