I've had good luck with two: a '76 with a 250 inline 6, and currently an '89 long van with a 305 (or close to that, I forget exactly). The long bed is sometimes handy but it only gets 10 mpg. Very reliable and surprisingly pleasant to drive. The cruise control is a bit cranky, I might try to fix it. Starts to slip down in speed now and then.

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Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K