Official BMW M3 / M4 Specs: 430HP, 369+ LB-FT, Under 3306 Pounds, Bi-Turbo Inline 6

Ahead of its official debut it looks like the official specs for the BMW M3/M4 have been revealed on the internet thanks to the guys over at Bimmerpost. The new beast will feature a Bi-turbo inline6-cylinder engine outputting 430 HP and “far beyond” 369+ LB-FT (500 Nm) of torque. Weighing in at under 3,306lbs BMW are also saying Fuel consumption & emissions will be reduced by 25%.

For the full tech specs list, hit the jump!

(Source: Bimmerpost)


  • Inline 6 cylinder engine with two mono-scroll turbochargers
    • Direct Injection
    • Double-VANOS
    • closed-decked crankcase
    • twin-wire arc-spray coating (instead of liners) in cylinder bores reduce engine weight
  • 430 HP (approximately)
  • “far beyond” 369+ LB-FT (500 Nm)
  • See Dyno Chart
  • Higher than 7500 RPM redline


  • Two mono-scroll turbochargers
  • Impulse charging for optimized responsiveness
  • Flow-enhanced manifolds
  • Electric wastegate actuator


  • Double-flow oil recirculation pumps
  • Turbocharger suction system
  • Main radiator plus additional radiators for the high- and low-temperature circuits, turbocharger and transmission,
  • Large indirect intercooler
  • Low-weight magnesium oil sump
  • Temperature-stabilizing electric water pump


  • Under 3,306 lb (1500kg) weight
    • this figure is without driver and with 90% fuel
    • BMW clarifies that “the new model is now around 80 kilograms lighter than a comparably equipped predecessor model” [80kg = 176 lbs]
    • compare to E46 M3 at ~3,400 lb curb weight
    • compare to E92 M3 at ~3,600 lb curb weight
    • compare to C63 AMG at ~3,900 lb curb weight
    • compare to RS5 at ~4,000 lb curb weight
  • ~ 7.68 lb/hp power to weight
    • compare to E92 M3 at 8.7
    • compare to C63 AMG at 8.7
    • compare to RS5 at 9.0
    • compare to E46 M3 at 10.25
  • Fuel consumption and emissions reduction of 25%


  • CFRP drive shaft
    • 40% weight savings over previous M3
    • increased stiffness
    • reduced rotating mass for better acceleration and throttle response
  • CFRP roof for both M3 and M4
    • saves 11 pounds (5kg) on M3
    • saves more than 13.2 pounds (6kg) on M4
  • CFRP roof bow
  • Carbon fiber trunk for M4 (11 pounds (5kg) weight savings)
  • CFRP front strut brace standard (weighs just 3.3 pounds (1.5 kg))


  • Standard 6 speed manual transmission
    • automatic throttle blips on downshift
    • more compact and quieter than predecessor E90/E92 M3 6 speed
    • 26.4 pounds (12kg) lighter
    • carbon fiber friction linings in synchroniser rings
    • dry sump lubrication
  • Optional 7 speed M DCT (double clutch transmission) with launch control
  • Active M Differential (with constantly variable locking a la M5/M6)
  • Forged crankshaft


  • Electric power steering specially tuned for M3/M4
  • Servotronic function electronically adjusts the level of steering assistance
  • Three modes: Comfort, Sport, Sport+


  • Optional Adaptive M suspension (with Comfort, Sport, Sport+ modes)
  • CFRP front strut brace
  • Double-joint spring strut front axle (saves 11 pounds)
  • New five-link rear axle made from forged aluminum (saves 6.6 pounds)
  • Aluminum suspension
  • Aluminium stiffening plate
  • Rear axle subframe fixed directly to body (bolted joints between the axle subframe and the body sills, without use of elastic rubber elements).


  • Lightweight forged wheels standard
  • Staggered tire sizes
  • M compound brakes standard (in blue)
  • M carbon ceramic brakes optional (in gold)


  • Exhaust features electrically controlled flaps just before rear silencer to minimize exhaust back-pressure as well as giving precise feedback on engine load.


  • 50:50 weight distribution
  • Air Curtain
  • M gills with integrated Air Breather behind front wheels


  • M3 and M4 to be introduced together (at Detroit NAIAS 2014 in January).
  • M3 and M4 developed with help of BMW race car drivers Bruno Spengler and Timo Glock’s participation in extensive testing and set- up runs on the Nürburgring-Nordschleife circuit, focusing on assessment of the cars’ suspension, tyres and all elements of the powertrain.