What is the difference fuel consumption between a 318i and 320i e30 BMW?
Very high (higher than 318i) consuption for 320i's for very
little gain. The extra weight in the inline 6 cylinder 320i, means
that the extra power it generates is wasted on the extra weight in
the engine. So performance figures are very similiar, but fuel
consuption for 320i is significantly higher.