Bmw M4 Competition Pack – review

Bmw
Bmw M4 Competition Pack
Bmw M4 Competition Pack

Performance

Although it’s no longer an analog experience, the 2018 BMW M4 is a thrill to put through its paces.

The 2018 BMW M4 is honed, polished sports car, even if it lacks some of the tactile feel this badge once guaranteed.

We’ve rated it a 9 out of 10 on account of its blistering acceleration, excellent gearboxes, grippy handling, and remarkably sublime ride quality.

Properly equipped, the Bmw M4 can either excel as a daily driver or as a track-day thrill-machine. It’s not quite a dual-natured vehicle, but it’s darn close.

Let’s start with the basics. All M4s boast a twin-turbo inline-6. In standard tune, it’s rated at 425 horsepower and 406 pound-feet of torque and it can be paired to either a standard 6-speed manual or an optional 7-speed dual-clutch automatic. It’s a robust engine that offers enough grunt to propel a coupe to 60 mph in just four seconds, give or take. The 7-speed’s actually a little quicker than the 6-speed because we’re finally at the point where machines are smarter than humans.

Bmw M4 Competition Pack
Bmw M4 Competition Pack

Opt for the Competition Package and a retune bumps things to 444 hp. A sports exhaust, a special steering ratio, and a uniquely tuned adaptive suspension are also part of the $4,250 package. In Competition trim, the Bmw M4 rides firmly without crashing over bumps. It’s clearly designed for track use, but it won’t beat you up too much on the way to your local club’s outing.

That’s not to say that the standard Bmw M4 is a softy. It rides firmly and although its steering is a hint slower than the Competition model’s, it attacks a curvy road with aplomb. The rear-drive chassis under all M4s is remarkably neutral, even when pressed hard into action. Only an electric steering system largely devoid of road feel and a nervous throttle in Sport+ mode spoil the experience.

The M4’s standard brakes bring things to a halt with a quickness, but the optional carbon ceramic units scrub off speed even better. Just be aware that the servicing costs on this $8,150 option will be extraordinary.

Given its extra weight, the Bmw M4 convertible inevitably forces some sacrifices. It’s not quite as sharp, but the open top experience lets drivers and passengers enjoy a more sensory experience. Instead of hearing only the simulated engine noises pumped through the audio system’s speakers—yes, that’s for real—dropping the top means you can actually hear the rorty, snarling sports exhaust system.

2018 BMW M4 Competition Package DCT data

Bodywork
Body type2+2 seater fixed-head coupé
Number of doors2
Dimensions & weights
mminches
Wheelbase2812 110.7
Track/tread (front)1580 62.2
Track/tread (rear)1603 63.1
Length4686 184.5
Width1869 73.6
Height1392 54.8
Ground clearance122 4.8
Length:wheelbase ratio1.67
Kerb weight1671 kg3684 lb
Weight distribution52.6 % front
fuel tank capacity59.9 litres15.8 US Gal
Aerodynamics
Drag coefficient0.34
Frontal area2.23 
CdA0.76
Engine
Engine typeturbocharged petrol
Engine manufacturerBMW
Engine codeS55B30T0
CylindersStraight 6
Capacity3 litre
2979 cc
(181.79 cu in)
Bore × Stroke84 × 89.6 mm
3.31 × 3.53 in
Bore/stroke ratio0.94
Valve geardouble overhead camshaft (DOHC)
4 valves per cylinder
24 valves in total
Maximum power output450 PS (444 bhp) (331 kW)
at 7000 rpm
Specific output149 bhp/litre
2.44 bhp/cu in
Maximum torque550 Nm (406 ft·lb) (56.1 kgm)
at 1850-5500 rpm
Specific torque184.63 Nm/litre
2.23 ft·lb/cu3
Sumpwet sumped
Compression ratio10.2:1
Fuel systemdirect petrol injection
Bmep (brake mean effective pressure)2320.1 kPa (336.5 psi)
Engine coolantWater
Unitary capacity496.5 cc
AspirationTurbo
Catalytic converterY
Performance
Acceleration 0-60mph3.8 s
Maximum speed250 km/h (155 mph)
Power-to-weight ratio269.4 PS/tonne (1000 kg)
198.14 kW/tonne (1000 kg)
265.71 bhp/tonne (1000 kg)
0.12 bhp/lb
Weight-to-power ratio5.05 kg/kW
8.43 lb/bhp
Fuel consumption
Fuel consumption17/24/20 US MPG EPA city/highway/combined
Universal consumption (calculated from the above)
Litres/100km13.8/9.8/11.8 l/100km city/highway/combined
km/litre7.2/10.2/8.5 km/l city/highway/combined
UK MPG20.4/28.8/24.0 UK MPG city/highway/combined
US MPG17.0/24.0/20.0 US MPG city/highway/combined
Chassis
Engine positionfront
Engine layoutlongitudinal
Drive wheelsrear wheel drive
Torque splitN/A
Steeringpower assisted rack & pinion
Wheel size front9J x 20
Wheel size rear10J x 20
Tyres front265/30 ZR 20 94Y XL
Tyres rear285/30 ZR 20 99Y XL
Brakes F/RVeDi/VeDi-S-ABS
Top gear ratio0.67
Final drive ratio3.46
General
Carfolio.com ID540177
Model familyF82
RAC rating26.2
Insurance classificationNo information available
Tax bandNo information available
Bmw M4 Competition Pack
Bmw M4 Competition Pack

2018 BMW M4 – Engine and gearbox

Codenamed the S55, the 3-litre twin-turbocharged straight-six found in the current generation M4 puts out 424bhp, just an 11bhp increase over its predecessor, the M3 coupe. The big jump for the turbo’d motor over the old naturally aspirated V8 in the is in torque, which is up from 295lb ft at a peaky 3900rpm to a mighty 406lb ft from just 1850rpm.

As such, real-world straight-line performance is drastically improved, although the free revving nature and spine-tingling soundtrack of those motorsport-inspired engines in M-cars of old has been lost.

Equipped with Competition Package, the M4’s power increases by 20bhp to 444bhp but peak torque stays the same. The extra power doesn’t dramatically change the attitude of the engine and, as the standard car’s performance is so strong, you don’t really feel the effect either. The Competition Package makes changes to the chassis too, and that’s where real improvements can be felt.

Where BMW deserves credit is in the work it has achieved with turbocharging. This engine is among the very best performance car turbo engines currently on the market. It boasts sharp throttle response and a willing top end. It easily can compete with the highly impressive ‘Hot V’ engine found in the C63 AMG and AMG GT.

In an effort to recreate some of that emotional engagement, BMW augments the sound of the new turbo engine by using the speakers within the cabin. The result, unfortunately, is not entirely convincing.

BMW offers buyers the choice between a six-speed manual gearbox and a seven-speed twin-clutch DCT unit. At a time when many manufacturers seem to be killing of their manual transmissions it’s great to know that M4 buyers can still opt for a stick and a pedal – although very few of them actually will.

The DCT ‘box is very effective, both in manual and auto mode. It can be a little clunky when left to its own devices, particularly when cold, but shifts are generally smooth and quick. In manual mode they bang in with a real intensity, responding immediately to the driver’s tweaks of the steering wheel-mounted paddles.

We do have some concerns over the way the drivetrain reengages, though, especially when shifting from third to fourth gear under full throttle load. When the new gear comes in, the torque delivery is so quick and abrupt that it can upset the rear axle and cause the tyres to break traction.

The Bmw M4 GTS’s engine is fundamentally the same as the standard M4’s, however, it makes 493bhp from its 2979cc straight-six thanks to the help of a water injection. The system alone doesn’t add horsepower, what it does is spray atomized water into the inlet to cool the gases and therefore allow even higher boost pressures which does increase power. The standard car’s water-to-air intercooler allows for a boost of 2.2bar, whereas the water injection allows the GTS’s boost to increase to 2.5bar.

BMW M4 Safety Recalls

  • Recall Number:                15V782000
    • Recall Date:            11/23/2015
    • Summary
      BMW of North America, LLC (BMW) is recalling certain model year 2015-2016 M3 Sedan vehicles manufactured May 30, 2015, to September 2, 2015, 2016 M4 Coupe vehicles manufactured July 3, 2015, to September 11, 2015, and 2015-2016 M4 Convertible vehicles manufactured May 29, 2015, to August 4, 2015. The affected vehicles have a driveshaft with a slip-joint that may not have been filled with grease. As a result, the slip-joint may fail over time.
    • Consequence
      If the slip-joint fails, there would be a loss of power to the rear axle and therefore the vehicle would stop moving, increasing the risk of a crash.
    • What Owners Should Do
      BMW will notify owners, and dealers will inspect the driveshaft, replacing it as necessary, free of charge. The recall began on January 14, 2016. Owners may contact BMW customer service at 1-800-525-7417.
  • Recall Number:              16V653000
    • Recall Date:           09/09/2016
    • Summary
      BMW North America, LLC (BMW) is recalling certain model year 2016 BMW M2 Coupe vehicles, 2015-2017 M3 Sedan vehicles and 2015-2016 M4 Coupe and M4 Convertible vehicles. During servicing of the rear differential for a prior service action, the rear sub-frame bolts may have been reused instead of being replaced. Reuse of the existing bolts may cause the bolts to loosen.
    • Consequence
      Loose rear sub-frame bolts may adversely affect vehicle handling and control, increasing the risk of a crash.
    • What Owners Should Do
      BMW will notify owners, and dealers will replace the rear sub-frame bolts with new bolts, free of charge. The recall began on November 3, 2016. Owners may contact BMW customer service at 1-800-525-7417.
  • Recall Number:               16V914000
    • Recall Date            12/20/2016
    • Summary
      BMW of North America, LLC (BMW) is recalling certain model year 2017 BMW 640i, 640i xDrive, 650i, 650i xDrive, M6, 535i, 535i xDrive, 430i, 430i xDrive, 440i, 440i xDrive, M4, X1 sDrive28i, X1 xDrive28i, i3, i8, Rolls-Royce Dawn, Mini Clubman Cooper, Clubman Cooper S, Cooper All4, Cooper S All4, Mini 4-Door Cooper, Cooper S, Mini 2-Door Cooper, Cooper S, John Cooper Works and 2016 BMW 528i, 528i xDrive, 535i, 535i xDrive, 550i, 550i xDrive, M5 and 535d vehicles. The affected vehicles have seat- mounted side air bag inflator initiators that may fail to ignite during a crash.
    • Consequence
      If the air bag inflator initiator fails to ignite, the seat-mounted air bag will not deploy, increasing the risk of injury.
    • What Owners Should Do
      BMW will notify owners, and dealers will replace the air bag modules, free of charge. The recall began February 6, 2017. Owners may contact BMW customer service at 1-800-525-7417.
  • Recall Number:            17V115000
    • Recall Date         02/23/2017
    • Summary
      BMW of North America, LLC (BMW) is recalling certain 2017 430i, 430i xDrive, 440i, 440i xDrive and M4 vehicles and Rolls-Royce Dawn vehicles. The affected vehicles have seat-mounted side air bag inflator initiators that may fail to ignite during a crash.
    • Consequence
      If the air bag inflator initiator fails to ignite, the seat-mounted air bag will not deploy, increasing the risk of injury.
    • What Owners Should Do
      BMW will notify owners, and dealers will replace the air bag modules, free of charge. The recall began April 17, 2017. Owners may contact BMW customer service at 1-800-525-7417.
  • Recall Number         17V507000
    • Recall Date      08/16/2017
    • Summary
      BMW of North America, LLC (BMW) is recalling certain 2018 430i, 430i xDrive, 440i, 440i xDrive, and M4 convertible vehicles. The Emergency Locking Retractors (ELR) within the front seat belt assemblies may have been produced with incompatible vehicle-sensitive locking mechanism housings.
    • Consequence
      If the vehicle has an incompatible vehicle-sensitive locking mechanism, the seat belt may not restrain the seat occupant in the event of a crash, increasing the risk of injury.
    • What Owners Should Do
      BMW will notify owners, and dealers will inspect and, if necessary replace, the front seat belt assemblies, free of charge. The recall began October 13, 2017. Owners may contact BMW customer service at 1-800-525-7417.

Source:
www.carfolio.com
www.cars.com
www.thecarconnection.com

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