I had an '85 diesel golf.

You will get 45mpg all day. It's not a speed demon but it's not all that bad either.

Goodluck.

EDIT

Those pics make me miss my ole golf cart. I was too tall for that car tho.

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08 R320 CDI current

Past
95 E420
87 300D Turbo 5spd
90 300TE
83 300SD
85 300TD
92 400E
85 190D