GM's British arm, Vauxhall, has introduced a new eco-friendly version of the Insignia to the UK market. The Insignia ecoFLEX is powered by a 2.0-liter CDTi diesel engine that produces 160HP and 350Nm from 1750-2500 rpm, with overboost to 380Nm. This is the same engine used in the standard 2.0 CDTi model, however, thanks to a series of fuel-saving measures that include improved aerodynamics and
