Here we have a 2021 BMW X2 18d SE, a diesel car with a 2.0-litre engine. This particular model boasts very low mileage of just 22915 miles and has had only one owner from new. The trim is SE, and the vehicle meets the Euro 6 emission standards. This X2 stands out with its fuel economy of 54 mpg, which means fewer trips to the pump and more money in your pocket compared to similar vehicles. The CO2 emissions are just 136 grams per kilometre, so you can drive with a cleaner conscience. Plus, with an insurance group of 22P, you'll likely benefit from lower insurance premiums, making it an economical choice all round.