BMW M5 Hybrid Outraces AMG E63 S and RS7 in Drag Showdown
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The unexpected outcome of Throttle House's luxury sedan drag race reveals a paradigm shift in performance engineering. When the plug-in hybrid 2025 BMW M5 (617 hp) lined up against the Mercedes-AMG E63 S (612 hp V8) and Audi RS7 Performance (621 hp V8), conventional wisdom suggested weight would be its downfall. At nearly 5,500 lbs, the M5 carried a "big fat plug-in hybrid ass" according to the hosts—yet it dominated both standing-start and rolling races against its lighter competitors. This victory demonstrates how electric torque delivery fundamentally changes the performance sedan landscape.
Testing Methodology and Vehicle Specs
Throttle House conducted three race formats to eliminate variables:
- Standing-start drags with launch control
- 50 km/h rolling accelerations
- EV-only mode sprint (M5 vs AMG GT 63 S E Performance)
Key technical comparisons:
| Model | Powertrain | Weight | Torque |
|---|---|---|---|
| BMW M5 | 4.4L V8 PHEV | ~5,500 lbs | 717 lb-ft |
| Mercedes-AMG E63 S | 4.0L V8 | ~4,600 lbs | 627 lb-ft |
| Audi RS7 Performance | 4.0L V8 | ~4,800 lbs | 627 lb-ft |
| AMG GT 63 S E Perf. | 4.0L V8 PHEV | ~5,200 lbs | 1,084 lb-ft |
The M5's instant electric torque (0-rpm delivery) proved decisive in rolling races where turbo lag affects traditional V8s. As test driver James noted: "The EV really makes a huge difference" when accelerating from 50 km/h.
Hybrid Dominance in Real-World Scenarios
Beyond raw numbers, the M5's powertrain offers unique advantages:
- Silent urban acceleration: In EV-only mode, the M5 reached 80 km/h without activating its combustion engine—outpacing the AMG GT 63 S in a near-silent "20-second quarter mile."
- Torque advantage without drama: Unlike the AMG's complex "boost mode," the BMW delivers maximum thrust consistently.
- Real-world efficiency: Owners can commute electrically while reserving V8 power for open roads.
However, the hosts noted tradeoffs:
"The E63 remains my choice despite losing," Thomas concluded. "There's an intangible joy in its analog engagement that specs can't capture."
The Future of Performance Sedans
This test signals inevitable industry shifts:
- Weight becomes secondary: As James quipped post-race: "It's not how much you weigh, it's how much you use it."
- EV integration is the new battleground: Mercedes' response with the 830hp AMG GT 63 S E Performance ($100k pricier) only narrowly defeated the M5 despite its power advantage.
- Wagons gain performance parity: All tested models offer high-performance wagon variants, maintaining practicality without sacrifice.
Actionable Insights for Buyers
- Test drive priorities:
- Conduct rolling-start acceleration tests (50-120 km/h)
- Evaluate EV-only range usability
- Compare launch control consistency
- Performance-value sweet spot: At ~$120k, the M5 delivers 95% of the $220k AMG GT 63 S E Performance's real-world acceleration.
- Listen for turbo lag: Traditional V8 rivals exhibit noticeable delay before peak torque arrives.
Toolbox: Performance Sedan Resources
- Dragy GPS Timer: ($150) Quantify acceleration claims independently
- BMW M Hybrid Training: (Free app) Master powertrain management
- The Truth About Electric Torque (SAE International Paper): Explains instant torque delivery advantages
"The M5 is a titan in a straight line against its peers," concluded Throttle House—proving hybrid tech can redefine expectations.
Which performance priority matters most to you: raw speed, driving engagement, or daily usability? Share your dealbreaker in the comments.
