Well I don't like having a noisy engine making its loud noise for six straight hours! Whatever happened to quiet, relaxed cruising?!? That's why I'll never take my diesel on such a long trip. Even just driving it on the highway for an hour annoys the hell out of me! Bring on the overdrive please. MB obviously was aware of this and that was why they changed the gearing in the early 90s.

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1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver