The cost difference of an OC 500 LE chassis with an OM 906 hLA
compared to an OM 457 hLA engine is non-existant because of
production quantities (they don't make them with the OM 906 hLA
because there is no demand for the chassis with this engine). The
difference in fuel consumption is also negligible - the heavy
chassis actually makes the 6.4-litre OM 906 hLA work much harder in
comparison to the OM 457 hLA - meaning higher consumption. There is
more to gain then lose with the 12-litre engine.
Regards,
Dave
