BMW has upgraded its 1 Series hatchback with new engines, a new look, and extra specification.

The new engines bring a reduction in fuel consumption of up to 12 per cent. All engines meet the Euro 6 exhaust emissions standard and offer as much as 326hp in the new M135i, with C02 emissions as low as 89g/km in the new 116d EfficientDynamics Plus model. 

The 1.5-litre three-cylinder engine in the new BMW 116d generates 116hp and 270Nm of torque, an increase of 10Nm compared to its predecessor. The figures for the new model are a 0-62mph time of 10.3 seconds coupled to fuel consumption as little as 78.5mpg and CO2 emissions of 94g/km.

These efficiency figures can be improved yet further with the 116d EfficientDynamics Plus model which, via a range of measures, attains 83.1mpg with CO2 emissions of 89g/km.

The new four-cylinder diesel engine used in the latest BMW 1 Series is offered in three states of tune: the 118d generates 150hp and 330Nm of torque, the 120d has 190hp and 400Nm, and the 125d, with its multi-stage turbocharging, provides a very impressive 224hp with 450Nm of torque, enabling this model to reach 62mph from rest in just 6.3 seconds. The 118d can achieve a fuel consumption figure of just 74.3mpg, but even the 125d manages a highly credible 61.4mpg.

The new BMW 1 Series will, from September production onwards, come as standard with navigation.

The BMW 1 Series is offered in three trims – SE, Sport and M Sport.

Standard equipment includes navigation, remote control central locking, keyless engine ignition, electric window controls, electrically heated exterior mirrors and the Driving Experience Control switch.

Also included is automatic air conditioning, a multi-function leather steering wheel adjustable for height and reach, a rain sensor including automatic driving lights control and a front passenger airbag that can be deactivated.

BMW Radio Professional including CD player with DAB, six loudspeakers and an AUX-In socket, and Bluetooth audio streaming functionality are other standard equipment features along with the iDrive operating system. Completing the offer is 16-inch alloy wheels, extended storage, sliding front armrest and fog lights.