This 2017 BMW 4 Series 420i M Sport is a rare find, having been driven just 18,616 miles by a single owner from new. As a BMW manufacturer approved vehicle, it offers peace of mind alongside its impressive specification. Under the bonnet sits a 2.0 litre petrol engine that meets Euro 6 emission standards. The M Sport trim enhances the driving experience with the Convertible Comfort Package, which includes a heated steering wheel, and the Driver Comfort Package, featuring keyless entry and memory seats. Manoeuvring is made straightforward by the Advanced Parking Package, which provides front and rear sensors along with a rear camera. Further practical additions include extended storage and high beam assistant for improved visibility. This vehicle stands out for its balance of performance and efficiency, achieving a fuel economy of 46 mpg and maintaining low CO2 emissions. It offers a practical solution for those who enjoy open top driving without compromising on utility, as it features a large boot space that is uncommon in this class of car. By combining these efficient running costs with generous storage and a high level of driver assistance technology, this model provides a well rounded and capable driving experience that is difficult to match.