with not having either experience with both. I would have to say the E-class. it cost more and so it would make sense for it to be built better.

however even if they have the same reliability. the V8 would probably cost more to fix.

sorry i am of no help

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198? 300D ???K - Future DD
1989 300TE 285K - traded in '12
1984 300SD 186K - Sold in 08
1978 300SD 330K - Died in 05