Mercedes-Benz has revealed its new rival to the Audi Q3 and BMW X1, with the GLA arriving in the UK early next year.

Expected to come in with a headline CO2, not yet confirmed for the UK, of 114g/km, the GLA will come with a choice of two petrol and two diesel engines.

The most efficient will be the 136hp 200 CDI, while the other diesel is the more powerful 170hp GLA 220 CDI.

Petrol options, of less interest to corporate operators, are the 156hp GLA 200 and the 211hp GLA 250, though that vehicle still combines a 6.5 second 0-62mph time with a provisional 151g/km of emissions.

The more powerful petrol and diesel derivatives are likely to come with the option of Mercedes’s 4Matic all-wheel drive system, while either a six-speed manual or seven-speed automatic will be the transmission options.

Considerably lower and less 4×4-styled than its BMW and Audi rivals, the GLA has a boot a solitary litre larger than either premium German competitor at 421 litres,

The GLA takes Mercedes to a four-model line-up of SUVs, joining the GL, ML and G-class models, though it is seen as part of the five-strong line-up of new small Mercedes models, alongside the new A-class, B-class, CLA four-door coupe and a fifth secret model.

Safety systems fitted as standard will include the drowsiness detector and Collision Assist, which helps mitigate collision from as low as 4mph.

in addition to that, optional upgrades will include Collision Prevention Assist Plus, which carries out autonomous braking at speeds of up to 124mph if the driver fails to respond to the threat of an accident.

It will also brake in response to detecting a stationary vehicle at up to 18mph.