Under the hood, a 3.0 litre V6 diesel engine with 255bhp (258PS) and 620Nm (457 lb-ft) of torque. It enables the S350 to accelerate from 0-62mph in 7.1 seconds, before topping out at 155 mph.
Despite being more potent than its predecessor, the engine is 11% more economical thanks to AdBlue aqueous urea injection. This allows the car to have an average fuel consumption of 41.5mpg (6.8l/100km) combined and CO2 emissions of 177g/km (down from 37.1mpg (7.6l/100km) and 199g/km).
In addition to the new engine, the S350 is available with Lane Keeping Assist, Active Blind Spot Assist, PASSION leather/Alcantara upholstery, and a Bang & Olufsen BeoSound sound system with 15 speakers and two amplifiers, with total output of 1200w.