
The differences between the S350 and S400 are as follows: 1. Design Differences: The Mercedes-Benz S400 offers improved rear lighting effects. The front and rear bumpers have been modified for the facelift, with sharper lines that give the S-Class a more youthful and sporty appearance. The rear design of the Mercedes-Benz S350 has also undergone subtle adjustments, with the black sections in the taillight clusters removed, making the taillights appear more dazzling and brighter. 2. Engine Differences: The Mercedes-Benz S400 is based on a V6 engine, with a flat disc-shaped motor added between the engine and the transmission. The Mercedes-Benz S350 consists of a powerful six-cylinder gasoline engine and a high-torque electric motor, operating economically to minimize environmental impact.

I'm really into cars, especially high-end models like the Mercedes-Benz S-Class. The biggest difference between the S350 and S400 lies in their power. The S400 boasts over 333 horsepower, delivering an exhilarating acceleration that goes from 0 to 100 km/h in just over 5 seconds, with a strong push-back feeling that's absolutely thrilling, especially on mountain roads where the instant power surge is pure joy. The S350, on the other hand, typically has around 286 horsepower, with a more modest acceleration time of over 6 seconds, making it steadier and more comfortable for daily commuting. In terms of fuel efficiency, the hybrid version of the S400 is actually quite efficient, especially on highways where it doesn't consume much fuel. Both cars come equipped with the same suspension system, which is incredibly comfortable. Driving the S400 on the highway gives me a lot of confidence when overtaking—it feels like taming a beast, and Mercedes' handling has always been my favorite.

I carefully compared the S350 and S400 when considering my car budget. The S350 has a lower starting price, saving tens of thousands that could cover two more years of driving. In terms of fuel consumption, the diesel S350 averages 7 liters per 100 km, while the gasoline S400 can exceed 10 liters, costing significantly more on long trips. Maintenance is also higher for the S400, with its hybrid system being more expensive to repair, and insurance premiums slightly higher. Over the long term, the S350 is more worry-free and cost-effective, especially with fluctuating fuel prices. However, if you prioritize driving experience, the S400's performance is truly worth the extra cost, and Mercedes holds its value well. Overall, choose the S350 if your budget is tight, and go for the S400 if you have more flexibility.

I often engage in car techniques and find the S400 has more technical highlights. It features a hybrid system with electric motor assistance, offering quiet starts, fuel efficiency, and more eco-friendly emissions; the S350, on the other hand, mainly comes with a pure diesel or gasoline engine, which is simpler in structure. The S400 can intelligently switch driving modes, such as braking to recover energy into the battery, which is pretty cool. In terms of power, the S400 outputs around 333 horsepower, significantly stronger than the S350's 286 horsepower, making it more responsive to drive. Both cars share the same chassis and comfort systems with no major differences. Maintaining the hybrid system requires professional shops, but Mercedes-Benz is generally durable and reliable—tech enthusiasts choosing the S400 can't go wrong.

I drive to and from work, and in practical use, both the S350 and S400 offer ample space, with incredibly comfortable seats. The S400 has strong power, making it effortless to overtake on the highway; the S350 is more agile in the city, with quick starts at traffic lights and better maneuverability at low speeds. The fuel consumption difference in daily use is minimal—unless you floor the S400, the difference in city driving is just one or two liters per 100 kilometers. Both cars are easy to park and handle, and maintenance is fully covered by Mercedes-Benz 4S shops. For family use, the S350 is more than sufficient, being cost-effective and practical. After driving them for a while, you'll find both cars are top-tier—it just depends on whether you prefer a smoother ride or a bit more excitement.


