What is the difference between Mercedes-Benz 350 and 400?

2 Answers
NathanRose
09/02/25 8:20am
Mercedes-Benz 350 and 400 represent different displacement models of the same Mercedes-Benz series (taking the Mercedes-Benz SL model as an example): Mercedes-Benz SL350: Equipped with a 3.8L V6 engine, the transmission is an electronically controlled 6-speed manual gearbox with steering wheel shift buttons. Displacement (ml) 3724, maximum power (kw) 180/5750, maximum torque (N.m) 350/3000-4500. Mercedes-Benz SL400: 3.0-liter twin-turbocharged direct-injection V6 gasoline engine, the peak horsepower and torque output of the SL400 reach 328bhp and 480N.m respectively.
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McTessa
09/15/25 3:28am
I previously drove a Mercedes-Benz S350, and compared to the S400, the differences are significant. In terms of the engine, the 350 is equipped with a 2.0-liter four-cylinder engine producing 299 horsepower, making it suitable for daily commuting with better fuel efficiency. The 400 upgrades to a 3.0-liter inline-six engine with 362 horsepower, offering faster acceleration and easier overtaking. In terms of fuel consumption, the 350 is more economical, averaging 6-8L/100km in the city, while the 400 averages around 7-9L. The configurations also differ, with the 400 featuring standard advanced driver assistance systems like adaptive cruise control and better seat ventilation, whereas these are optional for the 350, with a price difference of about 100,000 yuan. Maintenance costs are similar, but the 400 has more responsive acceleration. On long-distance drives, the 400 feels more stable with less vibration, especially excelling on mountainous roads. Overall, the 350 is practical and economical, while the 400 is better suited for those pursuing performance. The choice depends on individual driving habits and budget.
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