BMW has unveiled a stretched version of its X1 SUV at this week's Beijing motor show - but apart from the longer rear door and surrounds, you'd be hard pressed to spot the difference.

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Developed specifically for China, the long wheelbase X1 (badged X1 Li), will be built at a joint-venture factory Tiexi plant in Shenyang by BMW’s Chinese partner, Brilliance.

Catering for China’s growing demand for limo-like rear-seat space, the new X1 Li is 79mm longer than the standard X1, measuring 4560mm in length - making it only 100mm shorter than the larger X3 SUV.

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While adding a longer rear door and improved rear-seat legroom, the stretched wheelbase is the only difference between the X1 Li and the regular X1, meaning that the long wheelbase version retains the same 505-litre boot capacity of the standard wheelbase variant.

The X1 Li will be offered with three engine options: a 100kW 1.5-litre turbocharged three-cylinder petrol engine in the sDrive18Li, a 141kW 2.0-litre four-cylinder turbocharged petrol engine in the sDrive20Li and xDrive20Li along with the more powerful 170kW 2.0-litre turbo petrol in the xDrive25Li.

As the variants’ names suggest, the X1 Li will be offered with front- (sDrive) and all-wheel (xDrive) drive.

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The BMW X1 Li made its debut at the Beijing motor show this week, and will go on sale in China in the coming months.