BMW M4 Turbo DTM

The BMW M4 Turbo DTM is a "Class One" touring car constructed by the German car manufacturer BMW for use in the Deutsche Tourenwagen Masters. It will be a turbocharged variant of its predecessor, the BMW M4 DTM that had a naturally aspirated engine. The M4 Turbo DTM is still based on the production BMW M4. The BMW M4 Turbo DTM made its DTM début in the 2019 DTM season and will be used until 2021 season. The M4 Turbo DTM is the BMW's second-turbo powered DTM car ever to date and first overall DTM turbo-powered machine since Ford Sierra Cosworth RS500 Turbo DTM in 1989.

BMW M4 Turbo DTM
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Sheldon van der Linde driving BMW M4 Turbo DTM at the 2019 DTM Hockenheim round.
CategoryDeutsche Tourenwagen Masters (Class One Touring Cars) and Super GT GT500 Class One car
Constructor BMW
Designer(s)Michael Scully
PredecessorBMW M4 DTM (NA)
Technical specifications
ChassisCarbon-fibre reinforced plastic monocoque with a steel tubing roll cage
Suspension (front)Double wishbone axle with struts and 6-way adjustable ZF Sachs shock absorbers; H&R coil springs
Suspension (rear)As front
Length4,725 mm (186 in) excluding rear wing; 4,958 mm (195 in) including rear wing
Width1,950 mm (77 in)
Height1,200 mm (47 in)
Axle track1,950 mm (77 in)
Wheelbase2,750 mm (108 in)
EngineBMW Power P48 Turbo 2.0 L (122 cu in) inline-4 direct-injected with 4-stroke piston Otto cycle inter-cooled with efficiency combustion process and greater emission engine burning, single-turbocharged (supplied by Garrett), front engined, longitudinally mounted
TransmissionHewland DTT-200 6-speed + 1 reverse sequential semi-automatic paddle shift with limited-slip differential
BatteryBraille B128L Micro-Lite lithium racing battery 12 volts
Power610 + 30 hp (455 + 22 kW) (2019) later 610 + 60 hp (455 + 45 kW) (2020-present)[1] including push-to-pass
Weight986 + 84 kg (2,174 + 185 lb) including driver and fuel (1,070 kg (2,359 lb) of total weight)
FuelDTM-mandated Aral Ultimate unleaded 102 RON racing gasoline (2019) later Aral Ultimate newly-revolutionary environment-friendly high-performance fuel, with 50% of renewable components blend + 50% of unleaded racing gasoline blend to improve CO2 balance by 30% and environment safety (2020-present)
LubricantsShell Helix Ultra and Elf (privateer only)
BrakesAP Racing carbon brake discs with 6-piston calipers and pads
TyresHankook Ventus
ATS (2019-present)
ClutchZF 4-plate carbon fibre reinforced plastic clutch
Competition history
Notable entrants BMW Team RMG
BMW Team RBM
BMW Team RMR
BMW Team ART
Notable drivers Marco Wittmann
Timo Glock
Bruno Spengler
Philipp Eng
Joel Eriksson
Sheldon van der Linde
Alex Zanardi
Kamui Kobayashi
Lucas Auer
Jonathan Aberdein
Robert Kubica
Debut2019 DTM Hockenheim round
RacesWinsPolesF.Laps
20 (will include Super GT × DTM Dream Race non-championship joint-event at Fuji Speedway)666
Constructors' Championships0
Drivers' Championships0

Design

Chassis

BMW carried over the M4 DTM race car for it to undergo major development for the Class One project which will be used for the 2019 season and beyond and rebrand it as BMW M4 Turbo DTM. The aerodynamic packages of the M4 Turbo DTM also has significant changes including the front splitter length cut to 90 millimetres, radiator grill revamp, rear wing width increased to 520 millimetres and also DRS improvement to make cars aggressive for overtaking compared to the naturally aspirated BMW M4 DTM.

The design also features the new firewall interior cockpit protection to deflect debris away from a driver's head in the event of an accident.

New engine

The M4 Turbo DTM features a brand-new engine package built specifically for the car. The aging BMW P66/1 4.0 L (244 cu in) V8 naturally-aspirated engine—which had been used since 2012 with the M3—was replaced by a 2.0 L (122 cu in) inline-4 turbocharged direct-injected engine developed by BMW. The BMW P48 Turbo engine uses Garrett as the new turbo supplier.

Début

The first shakedown run of the BMW M4 Turbo DTM was on 27 October 2018, by Bruno Spengler at BMW headquarters in Munich, Germany.[2] The official race début of BMW M4 Turbo DTM was at the 2019 Hockenheimring 1 DTM round on 4 May 2019. BMW Team RMG's Marco Wittmann won the inaugural pole and won the first race with the M4 Turbo DTM car.

References
  1. Haidinger, Sven (26 December 2019). "DTM-Hersteller einig: Push-to-pass 2020 doppelt so stark, mehr Freiheit bei DRS". motorsport-total.com (in German). Motorsport Total GmbH. Retrieved 26 December 2019.
  2. "BMW begins testing new Class One engine for 2019 DTM rules". Autosport.com. 27 October 2018. Retrieved 27 October 2018.
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