Faults:

Recurring electrical problem with tail light bulb.

Coolant hose split at 88,200km.

General Comments:

This is my third Mercedes and by far the most comfortable car I have ever owned. It has effortless power from the 322hp engine, and one of the nicest interiors I've ever seen.

The drawback, of course, is the (lack of) economy. With a 100L fuel tank, it costs roughly $130 to fill up and I get about 300km to a tank. Insurance is also stratospheric.

Ultimately, although I have no regrets, I've now decided that it's time for me to get a car that's less expensive to run.