VAUXHALL'S most powerful Insignia, the V6 325PS VXR, is now available with an intelligent six-speed automatic gearbox which does not detract from its 155mph maximum speed or 0-62mph time of about six seconds.

The Insignia VXR Auto allows enthusiastic drivers the choice of full control over gear selection, or the convenience of a fully automatic mode on less demanding roads.

It adds £1,610 to the cost of the manual making the price of the automatic version £34,600.

The new auto box is fully adaptive and is connected to the Insignia VXR's standard four-wheel-drive FlexRide chassis, which automatically responds to changing road conditions and driving styles.

Drivers choose between a default ‘standard' mode ideal for everyday driving, or ‘sport' mode, which stiffens the car's dampers and reduces body movement at higher speeds.

In addition, a separate VXR button sharpens the car's steering and throttle response, as well as firming up the dampers still further. Make the change and the dials glow red to remind you the 'hot' mode is active.

The VXR automatic's gear-shifting character also adapts to prevailing road/driving inputs and it 'learns' the driver's style and preferences to optimize performance and economy.

The refinement of the Insignia VXR automatic is exceptional and it loses nothing in driver appeal.

You can leave it to its own devices or make sequential changes up and down without any hesitation or roughness.

Responses are sharp, the ride composed and comfortable and it is arguably the best Insignia in the line-up.

I saw just over 22mpg. Vauxhall claims 26.4mpg average with CO2 emissions of 251 g/km.