BMW 8 Series vs Mercedes-AMG C63 2026
The BMW 8 Series is a grand touring coupe with a 503 hp twin-turbo engine and emphasis on handling dynamics, while the Mercedes-AMG C63 is a compact performance sedan with a 469 hp turbo engine optimized for acceleration and luxury. They compete in different market segments—the 8 Series targets the flagship coupe market while the C63 dominates the compact sports car category.
BMW 8 Series (M850i xDrive)
Flagship luxury grand touring coupe with 503 hp twin-turbo engine and advanced handling technology.
Luxury buyers seeking flagship coupe prestige, weekend grand touring, and premium brand recognition.
Mercedes-AMG C63 S
Compact performance sedan with 469 hp turbo engine, 5-seat configuration, and AMG sport tuning.
Performance enthusiasts wanting AMG credentials at affordable pricing, daily drivers needing 5 seats, and buyers prioritizing practicality over flagship status.
Quick Answer
AI SummaryThe BMW 8 Series is a grand touring coupe with a 503 hp twin-turbo engine and emphasis on handling dynamics, while the Mercedes-AMG C63 is a compact performance sedan with a 469 hp turbo engine optimized for acceleration and luxury. They compete in different market segments—the 8 Series targets the flagship coupe market while the C63 dominates the compact sports car category.
Our Verdict
AI-assistedChoose the BMW 8 Series if you prioritize a premium grand touring experience, want flagship coupe styling, and value the slightly more powerful engine with better cargo space. Choose the Mercedes-AMG C63 if you need a practical 5-seat sedan with track-capable performance, prefer a more compact footprint, and want to spend $70,000 less on entry-level pricing.
Was this verdict helpful?
Choose BMW 8 Series (M850i xDrive) if
Best pickLuxury buyers seeking flagship coupe prestige, weekend grand touring, and premium brand recognition.
Choose Mercedes-AMG C63 S if
Performance enthusiasts wanting AMG credentials at affordable pricing, daily drivers needing 5 seats, and buyers prioritizing practicality over flagship status.
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Key Differences at a Glance
- Engine Power Output:✓ BMW 8 Series (M850i xDrive) wins(503 hp (M850i xDrive) vs 469 hp (AMG C63 S))
- Vehicle Type:Grand Touring Coupe vs Compact Performance Sedan
- 0-60 mph Acceleration:3.6 seconds vs 3.6 seconds
Key Facts & Figures
8 numeric metrics compared
| Metric | BMW 8 Series (M850i xDrive) | Mercedes-AMG C63 S | Ratio |
|---|---|---|---|
| Engine Power(hp) | 503 hp | 469 hp | |
| Engine Torque(lb-ft) | 516 lb-ft | 503 lb-ft | |
| 0-60 mph Acceleration(seconds) | 3.6 seconds | 3.6 seconds | |
| Top Speed(mph) | 155 mph (electronically limited) | 155 mph (electronically limited) | |
| Starting MSRP(USD) | $139,500 | $69,900 | |
| City / Highway Fuel Economy(mpg) | 21 / 28 mpg | 20 / 28 mpg | |
| Cargo Capacity(cubic feet) | 14 cu ft | 12.6 cu ft | |
| Seating Capacity(passengers) | 4 passengers | 5 passengers |
Sourced from publicly available data ·
Key Differences
7 attributes compared head-to-head
- 503 hp (M850i xDrive)(winner)Engine Power Output469 hp (AMG C63 S)
- Grand Touring CoupeVehicle TypeCompact Performance Sedan
- 3.6 seconds0-60 mph Acceleration3.6 seconds
- $139,500Starting MSRP (2024)$69,900(winner)
- 4 passengers (coupe design)Seating Configuration5 passengers (sedan design)(winner)
- 21 city / 28 highway mpg(winner)EPA Estimated Fuel Economy20 city / 28 highway mpg
- 14 cubic feet(winner)Cargo Capacity12.6 cubic feet
- Engine Power Output
BMW 8 Series (M850i xDrive)
503 hp (M850i xDrive)(winner)
Mercedes-AMG C63 S
469 hp (AMG C63 S)
- Vehicle Type
BMW 8 Series (M850i xDrive)
Grand Touring Coupe
Mercedes-AMG C63 S
Compact Performance Sedan
- 0-60 mph Acceleration
BMW 8 Series (M850i xDrive)
3.6 seconds
Mercedes-AMG C63 S
3.6 seconds
- Starting MSRP (2024)
BMW 8 Series (M850i xDrive)
$139,500
Mercedes-AMG C63 S
$69,900(winner)
- Seating Configuration
BMW 8 Series (M850i xDrive)
4 passengers (coupe design)
Mercedes-AMG C63 S
5 passengers (sedan design)(winner)
- EPA Estimated Fuel Economy
BMW 8 Series (M850i xDrive)
21 city / 28 highway mpg(winner)
Mercedes-AMG C63 S
20 city / 28 highway mpg
- Cargo Capacity
BMW 8 Series (M850i xDrive)
14 cubic feet(winner)
Mercedes-AMG C63 S
12.6 cubic feet
Full Comparison
| Attribute | BMW 8 Series (M850i xDrive) | Mercedes-AMG C63 S |
|---|---|---|
| Engine Power(hp) | 503 hp(winner) | 469 hp |
| Engine Torque(lb-ft) | 516 lb-ft(winner) | 503 lb-ft |
| 0-60 mph Acceleration(seconds) | 3.6 seconds | 3.6 seconds |
| Top Speed(mph) | 155 mph (electronically limited) | 155 mph (electronically limited) |
| Starting MSRP(USD) | $139,500 | $69,900(winner) |
| City / Highway Fuel Economy(mpg) | 21 / 28 mpg(winner) | 20 / 28 mpg |
| Cargo Capacity(cubic feet) | 14 cu ft(winner) | 12.6 cu ft |
| Seating Capacity(passengers) | 4 passengers | 5 passengers(winner) |
Pros & Cons
10 pros·6 cons across both
BMW 8 Series (M850i xDrive)
Pros
- 503 hp twin-turbo inline-6 with 516 lb-ft torque delivers strong acceleration
- Premium 12.3-inch digital instrument cluster with configurable displays
- Adaptive suspension with 5 driving modes for dynamic handling
- Distinctive 4-seat coupe design with panoramic sunroof option
- Excellent fuel economy at 21 city / 28 highway mpg for its class
Cons
- Starting price of $139,500 is $69,600 more than AMG C63
- Limited to 4 passengers due to coupe design reduces practicality
- Smaller 14 cu ft trunk space requires planning for longer trips
Mercedes-AMG C63 S
Pros
- Entry-level starting MSRP of $69,900 offers exceptional value for AMG performance
- Practical 5-seat sedan configuration accommodates more passengers and everyday needs
- 9-speed automatic transmission with AMG-tuned sport dynamics
- Mercedes-Benz MBUX infotainment system with 11.9-inch touchscreen
- Track-focused AMG suspension with adjustable performance settings
Cons
- 469 hp is 34 hp less powerful than BMW 8 Series M850i
- 12.6 cu ft trunk is smaller, limiting luggage capacity
- Compact sedan design lacks the prestige and exclusivity of flagship coupe styling
Frequently Asked Questions
5 questions
Both achieve 0-60 mph in 3.6 seconds with identical acceleration performance. However, the BMW 8 Series produces 503 hp vs the AMG C63's 469 hp, giving the BMW a slight power advantage. The AMG C63 compensates with track-optimized suspension tuning and a lower center of gravity as a sedan, making real-world performance differences minimal.
Resources & Learn More
Curated sources to dive deeper
Where to Buy
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Wikipedia
- W
BMW 8 Series (M850i xDrive) on Wikipedia (opens in new tab)
Flagship luxury grand touring coupe with 503 hp twin-turbo engine and advanced handling technology.
- W
Mercedes-AMG C63 S on Wikipedia (opens in new tab)
Compact performance sedan with 469 hp turbo engine, 5-seat configuration, and AMG sport tuning.
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