GM's European division has fine tuned several engines in the Opel / Vauxhall Insignia range (known as the Buick Regal in the States0 for better economy and lower CO2 emissions. Aside from the changes made on the 2.0-liter Turbo unit that yield close to five per cent drop in emissions, all 2.0-liter diesel powerplants including the ecoFLEX models benefit from improvements that make them greener and less costly to run.
In the five-door liftback and four-door sedan ecoFLEX models, emissions have now dropped from 136g/km to 129g/km, with a corresponding improvement in fuel consumption from 54.3mpg UK [5.2lt/100km] combined, to 57.6mpg UK [4.9lt/100km]. As a result of the lower emissions, UK customers won't have to pay VED for the first year.
In the Insignia Sports Tourer ecoFLEX versions, C02 emission drop to 134g/km while delivering an improved fuel consumption of 55.4mpg UK, up from 53.3mpg UK.
The 2.0 CDTi 160HP versions benefit from C02 emissions of 144g/km (down from 154g/km), along with a 6.5 per cent lower fuel consumption, while the 2.0 CDTi 130HP engine emits 136g/km of CO2, an 11.5 per cent reduction
The automaker added that all 2.0 CDTi engines also benefit from a raft of changes to reduce noise and vibrations. At least in the UK, road prices for the diesel-powered Insignias remains the same.
