Inside, the Signum gets the same revamped dashboard as the Vectra and also benefits from Bluetooth wireless connectivity. In the rear, the sliding two-seat layout is unchanged. Underneath the skin, the same fundamental changes made to the Vectra's suspension set-up - giving improved steering feel and reduced body roll - have been applied. However, a Vauxhall spokesman said that the car's ride had been engineered for more comfort.
Engines will mirror those of the current Signum, with the 230bhp 2.8-litre turbocharged V6 the flagship. A hot 250bhp VXR version has not been ruled out either. On sale in October, models throughout the range are likely to carry a £250 premium over the current versions, with the line-up starting at around £18,895.
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