The new model, which will arrive in February, uses the all-aluminium 3.0-litre V6 common-rail turbodiesel first seen in Saab's 9-5, and the unit makes the Vectra an even better machine. The latest Vauxhall has already impressed with its levels of refinement, and adding this large-capacity diesel is no handicap. As with all oil-burners, it is slightly rough at tickover, but once at a cruising speed it's as quiet as a good petrol motor. Driven at Opel's Dudenhofen test ground, our Vectra proved its 140mph maximum speed in sixth gear.
Of more practical use, the 176bhp engine, with its variable-geometry turbo, develops maximum torque of 350Nm at 1,800rpm. This gives huge mid-range urge, which builds rapidly from 1,600rpm to at least 4,500rpm. While no official performance figures are available yet, there's no doubt the Vauxhall will comfortably beat the 9-5's own 0-60mph time of 9.3 seconds, and certainly improve on the bigger car's 38mpg, too.
The Vectra's main advantage will be its price, though - the DTi is expected to cost slightly less than the V6 petrol version, starting at around £20,000.
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