The MERCEDES-BENZ S CLASS (2017-20) S400L 4DR SALOON LWB 2.9D DPFR SS 340 EU6 AMG LINE 9G-T+ AUTO is a luxurious saloon designed for comfort and prestige, often seen as a flagship model in the UK market. It offers a spacious long-wheelbase (LWB) version, making it especially appealing to those who value extra rear-seat comfort for family or executive use. Its sleek design and advanced features set it apart from many rivals in the luxury saloon class, appealing to buyers seeking both style and high-tech comfort. Based on data from mycarcheck.com, this vehicle has been checked 34 times, with VINs ranging across 13 different cars, indicating it’s a relatively popular choice among used car buyers since its first check in 2021. It is commonly used by professionals, executives, or families who want a blend of performance, reliability, and sophistication. Its average private sale value of around £31,400 and mileage of approximately 82,000 miles suggest it’s a well-maintained vehicle with a good balance of luxury features and practicality. What makes the S400L stand out in its class is its refined driving experience combined with modern fuel efficiency and technology, including the AMG Line styling for a sportier look. It generally outperforms competitors through its comfort, diesel efficiency, and high-quality interior. Compared to rivals, it’s known for reliability and prestige, making it a popular choice for those seeking a premium executive saloon with a reputation for durability and performance.