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The BT04 required 18 months of development and will remain a one-off piece.


During the building process, we have customized the interior and the exterior of the car with a meticulous selection of each element.


The whole car restoration, assembly and mechanical upgrades have been carried out in Germany by official Porsche garage, AP Car Design. The car is TÜV approved and all mechanical parts are original Porsche parts.


Donor : Porsche 964 Carrera 4

Year : 1990


- Bodywork fully stripped back to its chassis, treated and restored

- Installation of the full WTL (Werks-Turbo-Look) body kit from the 3.6L Turbo and 3.8L RS

- Body colour: Porsche SportClassic grey with full ceramic coating

- 964 RS lightweight rear window

- Full LED headlights

- Removal of sunroof.



- Flat 6 engine fully disassembled and restored

- Displacement from 3.6L to 3.8L

- Power output increase from 250hp to 325hp with 370Nm of torque

- Full inox exhaust system with 2 exists (like RS 3.8L)


- BT04 weight: 1295kg (standard 964 C4 1450kg), replacement of original electric seats by lightweight Speedster seats, lightweight carpet, RS lightweight windows, lightweight Fuchs rims, no audio system, no airbags, RS lightweight doors panels, Momo Porsche racing steering wheel…

- Air-con has been kept.



- Brakes: 964 3.6L Turbo 322mm perforated disks with red caliper brakes

- Wheels: Fuchs rims 18x8.5

- Tyres: Michelin Pilot PS3 225/40 ZR 18

- Front spacers: 7mm

- Suspension KW V1 (lowered by -40mm like the RS 3.8)


- Brakes: 964 RS 300mm perforated disks with red caliper brakes

- Wheels: Fuchs rims 18x10

- Tyres: Michelin Pilot PS3 265/40 ZR 18

- Front spacers: 18mm

- Suspension KW V1 (lowered by -40mm like the RS 3.8)


- Upgraded gear box to accept the power and torque increase

- New reinforced shaft drive


- Replacement of the original electric seats by lightweight Speedster bucket seats, red piping and stitching

- 964 RS doors panels,

- No audio system,

- New dashboard covered in black leather with red stitching, 

- Red tachometer with Blacktrack logo surrounded by satin aluminium rings.

- Aluminium gear stick with walnut wood shift knob 

- Alcantara Momo racing steering wheel with Blacktrack logo,

- The interior was fully designed following the Blacktrack color trim: Black mat soft leather, red piping and stitching,


aluminium details. The honeycomb 3D fabric comes from the Roche Bobois Bubble sofa.

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