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. The M4 Turbo DTM is the BMW's second turbo-powered DTM car.
_FP1.jpg.webp) Sheldon van der Linde driving BMW M4 Turbo DTM at the 2019 DTM Hockenheim round. | |||||||||
| Category | Deutsche Tourenwagen Masters (Class One Touring Cars) and Super GT GT500 Class One car | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Constructor |  BMW | ||||||||
| Designer(s) | Michael Scully | ||||||||
| Predecessor | BMW M4 DTM (NA) | ||||||||
| Successor | BMW M4 GT Pro | ||||||||
| Technical specifications | |||||||||
| Chassis | Carbon-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 | ||||||||
| Length | 4,725 mm (186 in) excluding rear wing; 4,958 mm (195 in) including rear wing | ||||||||
| Width | 1,950 mm (77 in) | ||||||||
| Height | 1,200 mm (47 in) | ||||||||
| Axle track | 1,950 mm (77 in) | ||||||||
| Wheelbase | 2,750 mm (108 in) | ||||||||
| Engine | BMW 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 | ||||||||
| Transmission | Hewland DTT-200 6-speed + 1 reverse sequential semi-automatic paddle shift with limited-slip differential | ||||||||
| Battery | Braille B128L Micro-Lite lithium racing battery 12 volts | ||||||||
| Power | 610 + 30 hp (455 + 22 kW) (2019) later 610 + 60 hp (455 + 45 kW) (2020-present)[1] including push-to-pass | ||||||||
| Weight | 986 + 84 kg (2,174 + 185 lb) including driver and fuel (1,070 kg (2,359 lb) of total weight) | ||||||||
| Fuel | DTM-mandated Aral Ultimate unleaded 102 RON racing gasoline | ||||||||
| Lubricants | Shell Helix Ultra and Elf (privateer only) | ||||||||
| Brakes | AP Racing carbon brake discs with 6-piston calipers and pads | ||||||||
| Tyres | Hankook Ventus ATS (2019-present) | ||||||||
| Clutch | ZF 4-plate carbon fibre reinforced plastic clutch | ||||||||
| Competition history | |||||||||
| Notable entrants | BMW Team RMG.svg.png.webp){kind=small} BMW Team RBM BMW Team RMR BMW Team ART | ||||||||
| Notable drivers | Marco Wittmann Timo Glock.svg.png.webp){kind=small} Bruno Spengler Philipp Eng Joel Eriksson Sheldon van der Linde Alex Zanardi Kamui Kobayashi Lucas Auer Jonathan Aberdein Robert Kubica | ||||||||
| Debut | 2019 DTM Hockenheim round | ||||||||
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| Constructors' Championships | 0 | ||||||||
| Drivers' Championships | 0 | ||||||||
BMW M4 Turbo DTM will be also the last BMW "Class One" vehicle in the DTM to date.
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 utilizing Garrett as the new turbo supplier. To comply with Class 1 regulations, the new BMW M4 Turbo DTM has an exhaust tip ending at the right side, rather than its naturally-aspirated predecessor, which had exhaust tips on both sides.
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
- 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.
- "BMW begins testing new Class One engine for 2019 DTM rules". Autosport.com. 27 October 2018. Retrieved 27 October 2018.