Usually with such strong performance, the running costs would be unfortunately high, but as the X1 is a small SUV crossover, this isn’t a problem. The sDrive18d diesel model for example will return 57.6mpg and produce low CO2 emissions of 128g/km. The flagship in terms of economy is the sDrive 20d EfficientDynamics engine, which will average a return of 62.8mpg with CO2 emissions of 119g/km, making it road tax exempt for its first year. Comparatively the Ford Kuga has 210g/km of CO2 emissions, whereas the VW Tiguan comes in at 216g/km. Although they are both at least £2,000 cheaper than the X1’s purchase price at £24,200, their running costs are much higher, making them altogether a more expensive purchase.