A POWERTRAIN upgrade for the Nissan X-Trail crossover SUV brings reduced CO2emissions and improved fuel economy across the revised range.

Nissan X-Trail customers can choose from two all-new engines - one petrol, one diesel - linked to two transmissions - a six-speed manual, or an all-new seven-speed dual clutch transmission (DCT) automatic.

There's the option of two-wheel-drive for those who rarely venture off-road and four-wheel drive for those who need additional traction.

The new diesel engine is a 1.7-litre dCi 150ps unit. It's available in 2WD and 4WD, and with a six-speed manual gearbox.

The new petrol engine is a 1.3-litre DIG-T 160ps unit, available in 2WD and dual clutch transmission.

New to the X-Trail line-up, the DCT provides customers with a sporty and more direct dynamic experience, improved standing-start performance and smoother power delivery.

The DCT features electrical on-demand cooling and electro-mechanic gear actuation to improve efficiency.

Nissan says it provides clear benefits to drivers - both private and fleet - as there's an immediate gear shift with no power interruptions.

The absence of a torque converter creates a more direct driving feeling, making it more fun to drive, says the company.