What are the differences between the Mercedes-Benz S400 and S450?

[SanEmerson]

The main differences between the Mercedes-Benz S400 and S450 are as follows: 1. Exterior: The S450 has made positive changes in its appearance, breaking away from conservatism and dullness to keep up with trends and become more dynamic to capture the favor of the new elite, which is also the brand direction of Mercedes-Benz in recent years. 2. Interior: The S450 basically retains the overall design of the previous model in its interior, but has also undergone comprehensive optimization in interior details. The newly designed three-spoke flat-bottom steering wheel adds a sporty touch, and the central LCD screen and central instrument panel feature a connected design. The 64-color ambient lighting also provides more options for passengers.

[MacJourney]

I've always been interested in luxury cars, so I know the essential difference between the S400 and S450 lies in engine performance. The S400 uses a 367-horsepower six-cylinder turbocharged engine, delivering smooth and quiet driving, perfect for daily commutes or long-distance trips. The S450 upgrades to 429 horsepower, offering much quicker acceleration and stronger push-back force, ideal for drivers seeking excitement. Both are equipped with 3.0-liter engines, but the S450 is tuned higher and may come with an active suspension system that automatically adjusts stiffness for more precise handling. In terms of features, the S450 usually includes more safety assistance functions like adaptive cruise control, though it consumes slightly more fuel. The price difference is around 100,000 to 150,000 yuan—the S450 is more expensive but the horsepower justifies the cost. Overall, the S400 is practical and elegant, while the S450 is a feast for performance enthusiasts—the driving experience is noticeably different.

[RyleeLynn]

Having driven Mercedes-Benz models multiple times, the most noticeable difference between the S400 and S450 lies in comfort. The S400 features thicker seat cushioning and a softer suspension, making it feel like sitting on a sofa when going over speed bumps or rough roads. The S450, with its firmer suspension tuning, offers better stability in corners during sport mode, reducing bumps and sway, though it might be slightly more tiring on long trips. In terms of engine performance, the S450 has higher horsepower, delivering sharper acceleration, while the S400 is more fuel-efficient and smoother in city traffic. The S450 offers more premium leather and metal trim options for the interior, making the extra tens of thousands spent worthwhile. The S450 shines in safety systems, including blind-spot monitoring, enhancing safety during night or high-speed driving. For most people, the S400 is recommended as it is more than sufficient.

[SabrinaRose]

To be honest, the core differences between the S400 and S450 are performance and price. The S400 has around 367 horsepower, with a 0-100 km/h acceleration time of just over 5 seconds, which is more than enough for city driving. The S450 boosts that to 429 horsepower, shaving off 0.5 seconds in acceleration, making overtaking more exhilarating but consuming 1-2 liters more fuel per 100 km. In terms of pricing, the S450 is 100,000 to 150,000 RMB more expensive, adding some active safety features like collision warning. If you don't often push the car to its limits, the S400 is a practical choice, saving enough money for a genuine leather seat upgrade. Both engines are reliable, with similar maintenance costs, and the 6-cylinder units are durable. The cabin noise insulation is top-notch in both, with no difference. The choice depends on your budget and driving style: go for the S400 to save money, or the S450 for a more luxurious feel.

[DeLola]

I think the S400 leans towards business elites, being low-key and efficient; while the S450 attracts younger, affluent enthusiasts with its sporty vibe. The 400 horsepower is sufficient for daily use, and the interior is simple yet elegant. The 450 steps it up to 429 horsepower, featuring adjustable suspension and LED headlights, making it more thrilling for mountain roads or night drives. Safety-wise, the 450 comes standard with an active braking system to prevent rear-end collisions. The 450 has slightly higher fuel consumption, but buyers in this segment don't mind the difference. Both models offer the same level of seat comfort, upholstered in top-tier leather. The price difference is over 100,000 yuan, with the 450's added value lying in its extra features and power. If you're after high-speed excitement, the 450 is the better choice, while the 400 is perfect for steady commuting. Both are easy to maintain, with service readily available.

[AbigailLee]

Long-term attention to Mercedes-Benz cars reveals subtle yet significant differences between the S400 and S450. The S400 features a six-cylinder engine with 367 horsepower, offering smooth performance and fuel efficiency; the S450 upgrades to 429 horsepower, delivering faster acceleration and robust power. The S450 offers an optional air suspension system that automatically adjusts stiffness for enhanced comfort. In terms of configuration, the S450 includes additional safety assists like blind-spot detection, ensuring greater peace of mind during night driving. The price difference starts at 100,000 yuan, with the S450 being more expensive but holding its value better. Although the S450 consumes slightly more fuel, the increased horsepower justifies the cost. Both models share the same luxurious and quiet cabin ambiance. Maintenance-wise, the S450's engine components are slightly heavier, adding a few hundred yuan to oil change costs, but overall reliability remains high. For average families, the S400 is sufficient; for driving enthusiasts, the S450 is the choice for an exhilarating experience without regrets.