I've been told the Isuzu made engine in the Chevette was a good one, just rare.

The VW's are every bit as reliable as the Mercedes parts, and simpler to be honest. And weaker, which is important too.
For a converted gas engine, there amazing. The turbo models don't last as well, but there not at all bad if well cared for. The non-turbo's are rock solid as long as they timing belt is changed and there not overheated. Stupid aluminum head.
The car/trucks they were placed in are of varying quality, but all remarkibly simple.

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One more Radar Lover gone...
1982 VW Caddy diesel 406K 1.9L AAZ
1994 E320 195K