This 2017 BMW 4 Series 420d M Sport offers a refined driving experience that balances performance with everyday practicality. As an M Sport model, it features a 2.0L diesel engine that meets Euro 6 emission standards, ensuring it remains compliant with modern environmental regulations. The interior is equipped with a premium Harman Kardon loudspeaker system for high-quality audio, while the M Sport Plus package enhances the vehicle with an M Sport braking system. Parking is made straightforward thanks to the front and rear park distance control, which includes sensors for both ends of the car. Passengers can also enjoy a comfortable cabin environment with the automatic dual zone air conditioning and climate control system. This vehicle stands out by combining efficiency with capability, achieving an impressive fuel economy of 66 mpg alongside low CO2 emissions. It is designed to be a practical choice for many drivers, offering a large boot space for luggage or shopping and falling into a low insurance group, which helps keep running costs manageable. Despite its focus on economy, the car remains responsive on the road, capable of accelerating from 0 to 62mph in 7.1 seconds. These combined attributes make it a well-rounded option for those seeking a balance of power, cost-effectiveness, and utility in a modern saloon.