Several days ahead of its world debut, Opel throws in a surprise by adding a new range–topping biturbo diesel as part of Insignia’s 2nd generation lineup. The 210 hp (154kW) 2.0-liter biturbo diesel variant, which will come paired with an eight-speed automatic gearbox and all-wheel drive system will be sharing the stage with Opel Insignia’s GSi and Grandland X compact crossover at the 2017 Frankfurt Motor Show this coming week.
The Euro-spec 2.0 biturbo diesel version should be able to take off at 0-60mph (0-100km/h) in 7.9 seconds before hitting a top speed of 145mph (233km/h). Offered within the entire range of Insignia variants such as the Country Tourer, Sports Tourer and Grand Sport, the newest addition to the diesel range should be ready for taking orders any day now as it is slated for production shortly after the premiere.
Opel places the 2.0 biturbo at the top of the line, meaning it’s also more expensive while offering more benefits than the single turbocharger. The two-stage turbocharging technology or BiTurbo provides better output and lower fuel consumption as compared to the existing 125kW/170PS 2.0-liter diesel unit. The Biturbo version packs a powerful output of 154kW/210hp at 4000 rounds per minute and 480 Newton Meters of torque from 1500 rpm. Other than the Insignia model range, Opel’s biturbo diesel is being offered with the Movano midsize van, the Vivaro minibus and the Astra C-segment model line.
Both the current 2.0 diesel and its newest range-topping variant are featuring the highly efficient SCR or the Selective Catalytic Reduction exhaust system. This type of after-treatment technology goes along with Adblue injection that eliminates nitrogen oxide from the exhaust gas of the engine. Thereby, when the watery substance that has ammonia reacts to the nitrogen oxides in the catalytic converter, it ends up making harmless water vapor and nitrogen.
The two turbochargers instead work in sequence for optimum fuel efficiency, more powerful torque and increased power output. As the air goes through the first turbocharger, it initially compresses the intake air before passing on to the second unit. The variable geometry turbine in the exhaust gas helps in reducing fuel consumption while increasing torque at low engine speeds and raising its power at higher speed engine.
In accordance with New European Driving Cycle requirement or NEDC, the Insignia Grand Sport with 2.0-liter BiTurbo engine provides a combined fuel consumption of 6.9 liters per 100 kilometers while its fuel consumption figures for extra urban driving are at 5.7 l/100km and 8.7 l.100km for urban driving. In contrast, the Worldwide harmonized light vehicles test procedure figures (or WLTP) are also available for viewing online at www.opel.de along with the summary of the engines and corresponding fuel consumption based on NEDC.