The Mercedes-Benz S Class (2017-20) S400L 4DR Saloon LWB 2.9D DPFR SS 340 EU6 AMG Line Executive is a luxurious and prestigious vehicle that is well-known in the UK's executive car market. It is a long-wheelbase version, offering additional rear-seat comfort and space, making it a perfect choice for executives, business professionals, or wealthy families seeking comfort and status. This model is typically used for chauffeur-driven journeys or high-end personal travel, thanks to its refined design, smooth ride, and advanced features. Based on mycarcheck.com data, this vehicle has been checked 32 times, illustrating a solid interest in this model among buyers. The average valuation is around £35,100, with a typical mileage of 65,000 miles, reflecting its use in regular daily commuting or long-distance travel. The data also shows that most owners keep the car for about 6 to 7 years, emphasizing its reliability and desirability in the used car market. What makes this Mercedes-Benz standout is its combination of luxury, performance, and efficiency. It features the AMG Line trim, known for sporty aesthetics and enhanced comfort, along with a powerful 2.9D diesel engine. When compared to rivals, the S Class is often rated highly for its superior build quality, technological innovations, and overall driving experience. It is best suited for those who want a premium, comfortable, and reliable vehicle that exudes prestige while providing excellent value in the used car market.