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Vauxhall Insignia BiTurbo diesel launched

Vauxhall unveils its fastest diesel Insignia, the 192bhp, 295lb ft BiTurbo

Vauxhall has introduced a new twin-turbocharged diesel engine to top the Insignia’s oil-burning range. With 192bhp and 295lb ft on tap, the new motor has 35bhp and 37lb ft more than the single-turbo 2-litre CDTi it’s based on, and the company claims it can deliver an 8.2-sec 0-62mph time.

The new engine uses sequential turbos to give a fuller torque curve. A smaller turbo spins quickly at low engine speeds, equating to 258lb ft from just 1500rpm, and then both it and a larger turbine work together throughout the mid range. At the top end, the bigger turbo takes over and works alone from 3000rpm onwards.

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Vauxhall claims there’s no cost to economy, with an official 57.6mpg on the combined cycle – slightly better than the standard 158bhp 2-litre CDTi. Flexride adaptive damping is standard on all Insignias fitted with the new engine, with a sport button to vary throttle, steering and damper systems. Buyers will also get to choose between front- and four-wheel drive versions, with all-paw versions getting torque vectoring and an electronically controlled limited slip differential at the back.

Prices range from £27,120 to £33,320, with four wheel-drive versions costing between £1600 and £2500 more than front-drivers.

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