Volkswagen has revised the popular 3.0-litre V6 TDI engine in its Touareg SUV.

The unit, which accounts for 68% of all Touareg sales, now has more power – up 15bhp to 237bhp – and lower emissions, down from 278g/km to 262g/km.

Acceleration to 62mph improves from 9.2 seconds to 8.3.

Prices start at £33,465 for the SE model.