BMW M5 vs Mercedes-AMG E63 S: Which Supersaloon Reigns Supreme in 2025

When it comes to high-performance cars, the BMW M5 vs Mercedes-AMG E63 S dominate the supersaloon segment in 2025. These engineering marvels combine breathtaking speed with unmatched luxury, making them the ultimate choice for enthusiasts and professionals alike. The M5, with its 592bhp 4.4-liter twin-turbo V8 engine, rockets from 0-60mph in just 3.2 seconds. Meanwhile, the E63 S delivers smooth handling and rapid throttle response, cementing its reputation as a refined powerhouse.

The BMW M5 is priced at £89,645, directly challenging the Mercedes-AMG E63 S in both performance and luxury.

This comparison review of the BMW M5 vs Mercedes-AMG E63 S dives into their strengths, helping you decide which supersaloon best suits your lifestyle.

Key Takeaways

• The BMW M5 has a strong 600 horsepower engine, great for speed lovers.

• The Mercedes-AMG E63 S has 627 lb-ft of torque, giving it great power at slow speeds.

• Both cars have smart all-wheel-drive systems for better control and safety.

• The M5 mixes sporty driving with comfort, while the E63 S feels firmer and more focused on performance.

• Think about what you want: the M5 is quick and smooth, while the E63 S is high-tech and fancy.

Performance Comparison

Engine Power and Specifications

When it comes to raw power, both the BMW M5 and Mercedes-AMG E63 S deliver exceptional performance. The M5 is equipped with a 4.4-liter twin-turbo V8 engine that produces 600 horsepower and 553 lb-ft of torque. On the other hand, the E63 S features a slightly smaller 4.0-liter twin-turbo V8, but it edges ahead with 603 horsepower and an impressive 627 lb-ft of torque. This additional torque gives the E63 S a slight advantage in pulling power, especially at lower speeds.

Despite their differences, both engines are marvels of engineering, offering smooth power delivery and thrilling performance. The M5 is slightly more fuel-efficient, consuming 10.5L/100km compared to the E63 S’s 9.3L/100km. This makes the M5 a better choice for those who prioritize efficiency without sacrificing performance.

Acceleration and Speed

The BMW M5 and Mercedes-AMG E63 S are neck and neck in terms of acceleration. The M5 sprints from 0-60mph in just 3.2 seconds, while the E63 S follows closely at 3.3 seconds. Over longer distances, the M5 maintains its edge, completing the 0-124mph sprint in 11.1 seconds compared to the E63 S’s 11.5 seconds. This slight advantage can be attributed to the M5’s lighter weight, which enhances its agility and responsiveness.

In terms of top speed, the M5 also takes the lead. With the optional M Driver’s Package, it reaches a maximum speed of 191 mph, surpassing the E63 S’s 188 mph. These figures highlight the M5’s focus on outright speed and performance, making it a favorite among enthusiasts who crave adrenaline-pumping acceleration.

Handling and AWD Systems

Both the BMW M5 and Mercedes-AMG E63 S feature advanced all-wheel-drive systems that enhance their handling and usability in various conditions. The M5’s xDrive system stands out for its ability to distribute torque effectively, providing excellent traction and stability. In Comfort mode, the M5 behaves like a luxury sedan, but switching to Sport mode transforms it into a high-performance machine with rear-biased power distribution for a more engaging driving experience.

The E63 S, however, impresses with its poise and precision. Its handling belies its size, offering a stable and composed ride even during spirited driving. While the M5 feels more agile with quicker steering response, the E63 S delivers a sense of stability that inspires confidence. Both cars excel in their own ways, but the M5’s refined ride quality and sharper dynamics give it a slight edge for those who value agility.

Driving Experience

Comfort and Ride Quality

The BMW M5 offers a balance between sporty handling and luxurious comfort. Its adaptive suspension system adjusts seamlessly to road conditions, ensuring a smooth ride even on uneven surfaces. You’ll notice how the cabin isolates you from road imperfections, making long drives more enjoyable. The seats provide excellent support, with multiple adjustments to suit your preferences. In contrast, the Mercedes-AMG E63 S leans slightly towards a firmer ride. While it still delivers comfort, the suspension prioritizes performance, which can make the ride feel stiffer on rough roads. However, the E63 S compensates with plush materials and a quieter cabin, enhancing its luxury appeal.

Road and Track Performance

When it comes to driving thrills, the BMW M5 shines with its precise steering and agile handling. The xDrive system allows you to switch between all-wheel drive and rear-wheel drive, giving you control over how the car behaves. On the track, the M5 feels nimble, responding instantly to your inputs. The Mercedes-AMG E63 S, on the other hand, delivers a more aggressive performance. Its 4MATIC+ system provides exceptional grip, especially during high-speed cornering. The E63 S feels more urgent, with a sharper throttle response that adds excitement. Both cars excel on the road and track, but the M5’s versatility makes it more adaptable to different driving styles.

NVH and Refinement

Noise, vibration, and harshness (NVH) levels are critical for a refined driving experience. The BMW M5 excels in this area, offering a quiet cabin that minimizes wind and road noise. Its engine, while powerful, remains subdued during normal driving, adding to the sense of luxury. The Mercedes-AMG E63 S, while also refined, lets more engine noise into the cabin. This adds to its sporty character but may not appeal to those seeking a serene environment. Both cars feature advanced safety and driver-assistance systems, but the E63 S stands out with superior autonomous functionality, making it a better choice for tech enthusiasts.

Interior and Features

Design and Build Quality

The BMW M5 and Mercedes-AMG E63 S both showcase exceptional craftsmanship, but their design philosophies differ. The M5 emphasizes a sporty yet elegant aesthetic. Its adaptive LED headlights and leather upholstery create a modern and premium feel. The cabin features high-quality materials and meticulous attention to detail, ensuring a luxurious experience. In contrast, the E63 S leans toward understated sophistication. Leather trim and tri-zone air conditioning enhance its refined interior, while its minimalist design exudes class. Both vehicles deliver top-tier build quality, but the M5’s bold styling may appeal more to those who prefer a dynamic look.

Technology and Infotainment

Both the BMW M5 and Mercedes-AMG E63 S integrate cutting-edge technology to elevate your driving experience. The M5 features a 600W Harman/Kardon surround sound system, offering crystal-clear audio. Its infotainment system includes digital radio, Bluetooth, and smartphone mirroring, ensuring seamless connectivity. Meanwhile, the E63 S boasts a pair of 12.3-inch digital displays that provide a futuristic interface. Internet connectivity and digital radio enhance its tech appeal.

The M5’s infotainment system prioritizes user-friendliness, while the E63 S impresses with its futuristic displays. Both cars excel in technology, but your preference for simplicity or innovation will guide your choice.

Comfort and Space

The BMW M5 offers supportive seats and generous rear space, making it a practical choice for families. High-quality materials enhance the cabin’s comfort, ensuring a pleasant ride. The Mercedes-AMG E63 S matches this with its spacious interior and luxurious feel. However, it leans toward a sportier ambiance. Both vehicles provide ample room for passengers and luggage, but the M5’s balance of comfort and practicality makes it slightly more versatile for daily use.

Value and Pricing

Pricing and Options

The BMW M5 Competition starts at $103,500, offering a competitive price point for its segment. It includes a robust set of standard features, such as adaptive LED headlights, a Harman/Kardon sound system, and BMW’s intuitive iDrive infotainment system. Optional packages, like the Executive Package, add luxury touches such as ventilated seats and gesture controls. These options allow you to tailor the M5 Competition to your preferences without breaking the bank.

The Mercedes-AMG E63 S, priced at $112,450, positions itself slightly higher. It justifies this premium with features like dual 12.3-inch digital displays, tri-zone climate control, and AMG-specific performance enhancements. Optional extras include the AMG Night Package, which adds blacked-out exterior accents for a sportier look. While the E63 S offers more customization options, its higher base price may deter budget-conscious buyers.

Running Costs

Both the BMW M5 Competition and Mercedes-AMG E63 S demand significant running costs due to their high-performance nature. The M5 Competition achieves a fuel economy of 21 mpg combined, slightly better than the E63 S’s 20 mpg. Maintenance costs for the M5 Competition are manageable, thanks to BMW’s comprehensive service plans. However, tire replacements and brake servicing can add up quickly, especially if you frequently push the car to its limits.

The Mercedes-AMG E63 S incurs higher maintenance expenses due to its AMG-specific components. Its performance-oriented tires and brakes wear out faster, increasing long-term costs. Insurance premiums for both models are steep, reflecting their luxury status and powerful engines. If you prioritize efficiency and lower upkeep, the M5 Competition edges ahead.

Resale Value

Resale value plays a crucial role in determining long-term ownership costs. The BMW M5 Competition holds its value well, thanks to its reputation for reliability and strong brand loyalty. After five years, it retains approximately 55% of its original value, making it a solid investment for resale-conscious buyers.

The Mercedes-AMG E63 S also performs admirably in this regard, retaining around 53% of its value after five years. Its exclusivity and AMG branding contribute to its appeal in the used car market. However, the slightly higher depreciation rate compared to the M5 Competition may influence your decision if resale value is a priority.

After comparing the BMW M5 and Mercedes-AMG E63 S, you can see how each car excels in different areas. The M5 delivers sharper handling, better fuel efficiency, and a slightly lower price, making it ideal for those who value agility and practicality. The E63 S, with its higher torque, advanced technology, and luxurious refinement, appeals to drivers seeking a more aggressive performance and cutting-edge features.

If you prioritize track-ready dynamics and daily usability, the M5 might suit your lifestyle better. For those who prefer a sportier character and premium tech, the E63 S stands out.

Both cars showcase engineering brilliance, proving why they remain icons in the supersaloon segment.