zcc, you may have heard that there's nothing more expensive than a cheap MB automobile. There's a huge difference between a well-maintained MB that's being sold for a low price and one that's being sold cheap because it's been neglected. What's the case with the 600SEL you're considering buying? Realize that essentially you're maintaining two straight 6-cylinder engines so maintenance will be more expensive than for a 6-cylinder or an 8-cylinder automobile. Fuel costs will be higher too, but if you enjoy fast cars that may offset the additional expense.

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Fred Hoelzle