From £23,8808
Price, fuel economy, range and depreciation

BMW's diesel engines are renowned for low CO2 and decent economy, and the BMW X1 sDrive 20d Efficient Dynamics model is the most intelligent purchase on offer if frugality is your priority.

Included among this vehicle’s standard equipment is brake energy regeneration, start-stop, gear shift indicator, electric power steering, a disengaging air-conditioning compressor and tyres with reduced roll resistance.

If frugality is your priority, it is hard to look past the sDrive 20d Efficient Dynamics

It also has a longer rear axle ratio and special light alloy rims in a streamlined design. All that means it returns a claimed 62.8mpg and 119g/km of CO2. This makes it an appealing proposition in terms of vehicle excise duty and benefit-in-kind tax for business drivers.

Even in conventional SE trim rather than Efficient Dynamics, the 2.0-litre lump in the sDrive 20d doesn’t let the side down. In our hands, this X1 model managed just over 40mpg, and without more enthusiastic use the claimed figure of 53.2mpg should be more than a pipedream. CO2 emissions of 139g/km are admirable, too, but stick to rear-drive models if you want to achieve this; the xDrive20d emits 14g/km more.

The range starts with the SE trim and moves through Sport, xLine and the pinnacle, M Sport, which gets a more aerodynamically efficient body styling package. Options include cruise control and Xenon headlamps, but tick those boxes with care lest it add a significant sum to the price. For example, specifiying a factory-fit satnav can add a four-figure sum, making an aftermarket system much easier on the wallet. 

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In depreciation terms, the X1 is forecast to retain 43 percent of its value after three years, a respectable enough figure in this category.