Familiar identity
The F82 silhouette remains recognisable. Everything beneath it is redefined around a much more serious purpose.
GTMCommission inquiry GTM GMBH · PROTOTYPE P01
PRIVATE COMMISSIONM4 character.
M5 V8.
Built as a
Track Tool.
Built for the moment another fast road car is no longer enough. P01 combines a familiar BMW identity with the response, structure and consequence of a purpose-built track machine.
Current GTM output675 PS
Powertrain4.4-litre V8 Bi-Turbo
P01 statusGerman individual approval
VIDEO ERSETZT DIESES BILD
GTM_A02_HERODesktop: GTM_A02_HERO_VIDEO_D.mp4 · 2160×2700 · 4:5Mobil: GTM_A02_HERO_VIDEO_M.mp4 · 1080×1920 · 9:168–15 Sekunden, stummer Loop, P01 in der Eifel oder auf der Strecke. Poster jeweils als WebP mit gleichem Bildausschnitt.M4 F82 IDENTITYM5 S63B44B V8SELECTED BMW M4 GT4 COMPONENTSGTM SYSTEM INTEGRATIONDREXLER LIMITED-SLIP DIFFERENTIALGERMAN P01 APPROVAL
01 / Why GTM exists
Power is available everywhere.
This kind of connection is not.
P01 was created for drivers who already know what speed feels like.
The ambition was more difficult: preserve the character of an M4, introduce the authority of the M5 V8 and integrate selected BMW M4 GT4 components into one coherent, road-approved track tool.
Mechanical clarity
Uniball geometry, motorsport braking and a rigid structure replace isolation with information the driver can use.
V8 authority
The S63 V8 changes more than acceleration. Its response, heat and packaging shape the entire vehicle architecture.
GTM integration
Powertrain, chassis, cooling, fuel, electronics and approval only have value when they function as one complete car.
02 / The driver
It does not flatter.
It communicates.
The reward is not simply going faster. It is understanding more.
Every input has a consequence. The chassis reports what the tyres are doing, the V8 demands judgement and the complete car turns commitment into rhythm.
Drive to the circuit
P01 can reach the Nürburgring on its own wheels, because its German individual approval is part of the engineering story.
Integrate proven components
Selected BMW M4 GT4 suspension and braking components work with direct Uniball geometry as part of GTM's own vehicle architecture.
Take it home
The experience does not end when the session does. That duality is what separates P01 from a conventional race car.
VIDEO FEHLT
GTM_A03_TRANSFORMATION_FILMHIER VIDEO EINFÜGEN
Was soll zu sehen sein? Eine kurze Reise vom Eintreffen über Vorbereitung und erste Lenkbewegung bis zum Rhythmus auf der Strecke und der Heimfahrt. Nicht nur schnelle Fahraufnahmen, sondern das Fahrerlebnis erzählen.
Dateiformat: Desktop 3840×2160 (16:9), Mobil 1080×1920 (9:16), 18–30 Sekunden, MP4 H.264 + WebP-Poster.
GTM_A03_TRANSFORMATION_D.mp4GTM_A03_TRANSFORMATION_M.mp4GTM_A03_TRANSFORMATION_POSTER_D.webpGTM_A03_TRANSFORMATION_POSTER_M.webpTHE GTM EXPERIENCE
Road approved. Track focused. Built outside the formula.
03 / Under the surface
Explore the systems that make P01 possible.
The main vehicle view remains fixed. Select a hotspot to reveal the corresponding detail and understand what it changes for the driver.
BILD FEHLT
GTM_A04_00_MASTER_MAPHIER EINE FESTE, UNBESCHNITTENE 16:10-GESAMTANSICHT EINFÜGEN · 2400×1500 · WEBP/JPG/PNG. Die sechs Punkte werden einmal auf diesem Bild positioniert.BILD FEHLT
GTM_A04_01_POWERTRAINHIER DETAILBILD EINFÜGEN
Eingebauten S63-V8 samt Packaging, Haltern und sichtbarer DKT-Anbindung im echten P01 fotografieren.
GTM_A04_01_POWERTRAIN.webp · 2000×1500 · 4:3 · WEBP/JPG/PNG01 · V8 powertrain
A larger engine changes the whole engineering problem.
P01 integrates the M5 F10 S63B44B V8, its 4,395 cm³ displacement and the Getrag 7-speed M-DKT into the F82 architecture. GTM currently communicates 675 PS, with the emphasis on progressive delivery and repeatable circuit use.
- Hardware
- S63B44B · 4,395 cm³ · 675 PS · 7-speed M-DKT
- Driver value
- V8 response and authority that remain controllable at corner exit
Power has value only when the complete car can use it repeatedly.
04 / P01 as proof
Measured where claims become consequences.
P01 has been developed on real circuits and completed the harder legal step at home: an individual road approval in Germany.
The active public value for the current P01 specification.
A documented Nordschleife trackday lap. BTG, not an official 20.832 km record lap.
Mass in running order recorded in the P01 registration document.
German individual approval documented for Prototype P01.
M4 identity. M5 V8. BMW M4 GT4 components. GTM integration.
P01Documented in Germany
A purpose-built track tool with a licence plate.
P01's road status is a completed engineering achievement. Any future build and every foreign market requires its own assessment.
BILD FEHLT
GTM_A08_APPROVAL_PROOFHIER REDAKTIERTEN DOKUMENT-AUSSCHNITT EINFÜGENGTM_A08_APPROVAL_PROOF_REDACTED.webp · 2400×1600 · 3:2 · persönliche Daten schwärzenAW GT 4400 · P01
VIDEO FEHLT
GTM_A05_TRACK_VALIDATIONHIER VIDEO EINFÜGEN
Was soll zu sehen sein? P01 im echten Track-Betrieb: Fahrer, Kurvenarbeit, Bremspunkte, Onboard und kurze Setup-Momente. Keine 6:52-Einblendung und keine Rekord-Behauptung.
Dateiformat: Desktop 3840×2160 (16:9), Mobil 1080×1920 (9:16), 15–35 Sekunden, MP4 H.264 + WebP-Poster.
GTM_A05_TRACK_VALIDATION_D.mp4GTM_A05_TRACK_VALIDATION_M.mp4GTM_A05_TRACK_POSTER_D.webpGTM_A05_TRACK_POSTER_M.webpBILD FEHLT
GTM_A06_01_CAGEHIER BILD EINFÜGEN
Was soll zu sehen sein? Den gesamten P01-Käfig plus gut sichtbaren Verbindungspunkt zeigen. Keine reine Makroaufnahme.
Dateiformat: 2400×1600 · 3:2 · WebP/JPG/PNG.
GTM_A06_01_CAGE.webpBILD FEHLT
GTM_A06_02_CHASSISHIER BILD EINFÜGEN
Was soll zu sehen sein? Rad abnehmen und die dokumentierten BMW-M4-GT4-Fahrwerkskomponenten, Uniball-Gelenke, Radträger und Dämpfer sauber sichtbar fotografieren.
Dateiformat: 2400×1600 · 3:2 · WebP/JPG/PNG.
GTM_A06_02_CHASSIS.webpBILD FEHLT
GTM_A06_03_POWERTRAIN_COOLINGHIER BILD EINFÜGEN
Was soll zu sehen sein? Eingebauten S63-Motor und reale Kühlungs-/Leitungsintegration im P01 zeigen, kein freigestelltes Serienmotor-Bild.
Dateiformat: 2400×1600 · 3:2 · WebP/JPG/PNG.
GTM_A06_03_POWERTRAIN_COOLING.webp05 / Documented specification
The numbers that define P01.
Registration data and identified components from Prototype P01. The 675 PS value is GTM's current communication figure; 441 kW is the separate registered homologation value.
Vehicle identityBMW M4 Coupé F82 · 2 seats · rear-wheel drive
EngineBMW M5 F10 S63B44B · 4,395 cm³ · V8 Bi-Turbo
Current output675 PS communicated by GTM · 441 kW at 6,250 rpm registered homologation value
TransmissionGetrag 7-speed M-DKT · dual wet clutch
DifferentialZF M215 · Drexler mechanical limited-slip · active oil cooling
Front brakesBMW/AP Racing M4 GT4 · 6-piston · 390 × 33.5 mm · GT4 cooling ducts
Rear brakesAP Racing 4-piston CP9450 · 380 × 28 mm · integrated parking-brake function
SuspensionDocumented BMW M4 GT4 suspension components · Uniball joints · adjustable geometry
Aero and bodyBMW M4 GT4 front splitter and rear wing · MK carbon bonnet · Schirmer carbon doors
Registered wheel setupBMW M4 GT4/BBS 11J × 18 ET30 · 315/30 ZR18 front and rear
Dimensions4,671 × 1,870 × 1,350 mm · registered mass in running order 1,627 kg
Safety structure24/7 Performance roll cage · 45 mm main tubes · 40 mm cross and diagonal tubes
06 / Living with P01
The licence plate does not soften the purpose.
P01 can use the road, but it remains a high-load track machine. Directness, heat, noise and service discipline are not defects to hide. They are the honest cost of the experience.
Track-led maintenance
GTM's current track guidelines call for engine oil at 1,000 km, differential oil at 2,000 km and DKT oil at 3,000 km of circuit use.
Remote diagnostics
A local laptop can act as a gateway for fault codes, sensor values and technical diagnosis with the GTM engineering team.
Purpose before comfort
P01 is a road-approved track tool, not a grand tourer. Noise, heat, direct feedback and consumable wear are part of its character.
07 / Private commission
The specification begins with the driver.
The next GTM 4.4 is in development. Every serious conversation begins with intended use, experience and market, not a configurator.
Private inquiry
Tell us what you drive, where you use it and what your current car no longer gives you.
Technical dialogue
We define the intended use, home market, driving experience and priorities before discussing a specification.
P01 experience
Qualified clients can be invited to meet the team and experience the prototype in the Nürburgring region.
Commission proposal
Scope, specification and the delivery path are defined only after the project and the driver are a genuine fit.
08 / GTM GmbH
Developed within direct reach of the Nürburgring.
The workshop is based at Südschleife in Müllenbach, in the Nürburgring region.
That location keeps the development loop short: build, inspect, adjust and return to the circuit. P01 is the result of that proximity, specialist engineering and real track use.
BaseSüdschleife 5 · 53520 Müllenbach · Germany
BILD FEHLT
GTM_A09_EIFEL_ATELIERHIER BILD EINFÜGEN
Was soll zu sehen sein? Außenansicht oder Werkstatt in Müllenbach. GTM-Umgebung klar erkennbar, keine fremden Kundenfahrzeuge ohne Freigabe.
Dateiformat: Desktop 2400×1500 (16:10), Mobil 1600×2000 (4:5), WebP/JPG/PNG.
GTM_A09_EIFEL_ATELIER_D.webpGTM_A09_EIFEL_ATELIER_M.webpBILD FEHLT
GTM_A07_WORKSHOP_TEAMHIER BILD EINFÜGEN
Was soll zu sehen sein? GTM-Team in der echten Werkstatt. Personen frontal oder bei der Arbeit, Gesichter und Umgebung gut erkennbar.
Dateiformat: 2000×2500 · 4:5 · WebP/JPG/PNG.
GTM_A07_WORKSHOP_TEAM.webp09 / Before the first conversation
Straight answers.
Is GTM 4.4 simply a modified BMW M4?
No. P01 combines an F82 vehicle identity, the M5 S63 powertrain, selected BMW M4 GT4 suspension, braking and aerodynamic components, and GTM integration across packaging, cooling, fuel, electronics and approval.
Is P01 road approved?
Yes. Prototype P01 holds individual road approval in Germany under §21 StVZO. This status does not automatically transfer to another build or country.
What is the current power output?
GTM currently communicates 675 PS for P01. The 441 kW value in the registration document is the separate homologation value, not a current dyno measurement.
Is the GTM 4.4 a GT4 car?
No. GT4 is a homologated racing class with its own regulations and Balance of Performance. P01 is an independent track tool built outside that class formula. It combines selected BMW M4 GT4 components with the M5 S63 V8, GTM system integration and a completed German individual approval.
Can I order a fixed specification online?
No. GTM works through private dialogue. Intended use, driver experience and home market are established before a possible commission is defined.
PRIVATE COMMISSION INQUIRY
Tell us what you drive now and what the next car must change.
Include your current garage, track experience, intended use and home market. GTM will assess fit before discussing a possible commission.
Private commission inquiries · GTM GmbH