2018 BMW M5 Competition: 617-Horsepower Super Sedan Review

The 2018 BMW M5 Competition stands as a pinnacle of engineering, merging ferocious power with sophisticated luxury in a midsize sedan package. This model delivers 617 horsepower from its twin-turbocharged 4.4-liter V8, propelling it to supercar levels of acceleration while maintaining the poise of a premium daily driver.

Powertrain Excellence: Heart of the Beast

At the core of the 2018 M5 Competition lies the enhanced S63 4.4L twin-turbo V8 engine, tuned for 617 hp and 553 lb-ft of torque in Competition spec, surpassing the standard M5’s 600 hp. This power surge arrives instantly without turbo lag, mimicking the response of a naturally aspirated powerhouse. Paired with an 8-speed M Steptronic automatic transmission, gear shifts are lightning-quick and seamless, locking the torque converter early for direct power delivery.

BMW’s M xDrive all-wheel-drive system is a game-changer, offering selectable rear-wheel-drive mode for purists. In full AWD, it catapults the car from 0-60 mph in just 2.8 seconds, matching or exceeding rivals like the Tesla Model S P90D and outpacing the previous rear-drive M5 by a full second. Quarter-mile times hover around 10.9 seconds at 129 mph, cementing its status as one of the quickest sedans ever tested.

This table highlights the Competition’s edge over its predecessor, thanks to larger turbos, refined boost, and lightweight components.

Chassis Dynamics: Precision and Poise

Handling elevates the M5 beyond mere straight-line speed. The chassis delivers sublime, pinpoint accuracy, with active M Differential ensuring traction under power. Steering via M Servotronic is lively and communicative, providing genuine feedback rare in modern BMWs. In Comfort mode, it glides smoothly over imperfections like a standard 5-Series; switch to Sport or Sport Plus, and it transforms into a track weapon.

Body roll is minimal, brakes—especially optional carbon-ceramic discs—halt from 70 mph in 147 feet with Michelin Pilot Sport 4S tires gripping at 0.98 g on the skidpad. On public roads, the AWD setup pounces into corners and remains stable at speed, feeling smaller than its 1,982 kg curb weight suggests. Rear-drive mode adds playful oversteer potential, though AWD mode prioritizes security.

• Adaptive Suspension: Electronically adjustable dampers balance compliance and control across modes.
• Steering Customization: Adjustable weight and response via onboard settings.
• Traction Management: Active differential distributes power dynamically.

Interior Refinement: Luxury Meets Aggression

Inside, the M5 Competition coddles with high-quality materials, supportive M Sport seats, and a driver-focused cockpit. The cabin isolates noise effectively, even at triple-digit speeds, while the ride in softer settings absorbs urban potholes without drama. Tech includes the latest iDrive system, digital gauges, and optional heads-up display for seamless operation.

Practicality shines for a performance sedan: rear seats accommodate adults comfortably, and the trunk swallows weekend luggage. It’s a credible four-door family hauler that doubles as a canyon carver.

Fuel Efficiency and Real-World Use

Expect 15-17 mpg combined in testing (15 city/21 highway EPA), with real-world figures around 15.3 mpg over mixed driving. The 19.8-gallon tank supports spirited runs, though efficiency dips under aggressive use. As a daily driver, it excels, handling errands with finesse and undulations serenely.

Pricing and Ownership Costs

Base MSRP starts at $113,000, climbing to $133,800 as-tested with options like carbon brakes ($8,500) and premium packages. Depreciation is steep for luxury performance cars, but resale holds better for low-mileage examples. Maintenance demands premium fuel and BMW service intervals.

The M5 edges rivals in acceleration and versatility, though the CTS-V offers more power at a lower price.

Track and Road Impressions

On twisty roads, the M5 feels alive and engaging, slithering through turns with caster-like stability. Track sessions reveal its limits: front tires fight understeer, but balanced chassis inspires confidence. It’s less robotic than prior turbos, recapturing the joy of earlier M5s.

Reviewers praise its dual nature—super-subtle in traffic, rocket-like when provoked. The Competition package stiffens springs and dampers slightly for even sharper responses.

Pros and Cons

• Pros: Explosive acceleration, versatile AWD/RWD, luxurious ride, sharp handling.
• Cons: Thirsty on fuel, high price with options, heavy for pure dynamics.

Who Should Buy the 2018 M5 Competition?

Enthusiasts craving a do-it-all super sedan: track days, highway cruises, or family duties. It outshines predecessors and rivals in sheer capability.

Frequently Asked Questions (FAQs)

Is the 2018 BMW M5 Competition faster than the standard M5?

Yes, with 617 hp versus 600 hp, it shaves tenths off acceleration times.

Can it be driven in rear-wheel drive?

Absolutely, via M xDrive settings, unlocking tail-happy dynamics.

How does fuel economy compare to rivals?

Similar to peers at ~15-17 mpg combined; prioritize fun over efficiency.

Are carbon-ceramic brakes worth it?

For track use, yes—51 lbs lighter, superior stopping.

Is it comfortable for daily driving?

Exceptionally so in Comfort mode, rivaling non-M 5-Series.

Final Verdict

The 2018 BMW M5 Competition is a triumphant return to form, blending record-breaking speed, engaging dynamics, and luxury in one package. It holds value today as a used gem for performance seekers.