This 2018 BMW 4 Series 420i M Sport is a well-maintained example of the popular convertible, having covered just 28,500 miles since it was first registered. As an M Sport model, it combines the refined performance of a 2.0-litre petrol engine with the distinctive styling associated with this trim level. The vehicle meets Euro 6 emission standards, ensuring it remains compliant with modern environmental regulations while offering a balance of power and efficiency. The vehicle is equipped with several practical features designed to enhance the driving experience, including 19-inch M Star Spoke alloy wheels and front and rear Park Distance Control with parking assistance sensors. Comfort is prioritised through the inclusion of the Convertible Comfort Package, which features a heated steering wheel, alongside automatic two-zone air conditioning with climate control. This model is particularly efficient for its class, achieving 46 mpg and maintaining low CO2 emissions, making it a sensible choice for those seeking a premium driving experience without compromising on running costs.