This 2021 BMW 4 Series 420i M Sport boasts an exceptional provenance, having been meticulously maintained with a full dealership service history, most recently serviced at 27,535 miles on 17th November 2025. This impressive example has covered only 27,540 miles, a remarkably low figure for its age, and has had just one owner from new. The M Sport trim enhances its dynamic appeal, and it is equipped with the advanced Parking Assistant, which includes front and rear sensors along with a rear camera, making manoeuvring effortless. This BMW 4 Series 420i M Sport offers several key advantages that set it apart. Its fuel economy is a notable highlight, achieving an impressive 44 miles per gallon, which indicates greater efficiency compared to many similar vehicles. Furthermore, it falls into a low insurance group, suggesting more affordable ownership costs. The generous boot space provides excellent practicality for everyday use and longer journeys. With Euro 6 emissions and low CO2 emissions, it represents a more environmentally conscious choice. This vehicle also comes with 12 months of warranty and a 12 month MOT provided on purchase, offering peace of mind.