The 1961 we used to drive got about 32 on the road, and was fine for the old 55mph limit days. However it had shoe brakes all around and was no great performer in the stopping or acceleration departments. Might get 49mpg if dropped off a cliff, but no where else!!

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1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150