• A fantastic mid-engined racing car conversion, with only 16 hours on a fully rebuilt engine, and in impressive condition throughout.
  • Its motor is a 4.25-liter naturally aspirated flat-six, coupled to a six-speed manual transmission.
  • Based on a genuine Cayman GT4, this racer features a raft of upgrades and is a fully sorted, track-ready vehicle.


  • Finished in grey, but with a custom white livery wrap over the paintwork, this Cayman’s exterior has been further enhanced by a set of lightweight 19-inch Forgeline alloy wheels. A spare set of Forgeline wheels is also part of the sale.
  • There is a set of grooved brake discs with original red Porsche callipers, and the wheels are shod in Pirelli P Zero FerrarI Challenge slicks, in size 255/650-19 at the front and 305/690-19 at the rear.
  • Inside, the GT4’s cabin has been largely stripped out, with the core dashboard shell remaining. The standard HVAC unit has been moved to the passenger side, while there is a custom carbon-fibre centre console unit featuring the master switch and battery controls, plus the buttons for Sport mode, PASM, and ESC and traction control.
  • The gear linkage is fully exposed, and while the original steering column and stalks remain, the steering wheel has been swapped for a quick-release OMP item.
  • A pair of HANS device compatible OMP HTE-R racing seats has been installed, as well as Schroth safety harnesses, and a full custom roll cage in white. The doors have been changed to lightweight Clubsport specification carbon-fibre items.
  • An electronic fire suppression system is also fitted.
  • Its mechanical specification includes a fully rebuilt flat-six taken to a 4.25-liter displacement, along with a new transmission with Guard differential, an AASCO lightweight flywheel and a race clutch.


  • There is no known bodywork damage.
  • Its paintwork is believed to be in good condition underneath the wrap. The vinyl livery wrap itself presents well, with minor flaws and marks in line with its use and mileage.
  • The OMP racing seats are in good order with only light wear. The Alcantara steering wheel rim shows common ‘piling’ wear, and there are some general small marks and signs of use around the cabin.
  • There are no known electrical or mechanical faults.
  • Having been fully rebuilt and upgraded, the 4.25-liter flat-six has only been run for around 16 hours since this work. A new transmission is fitted with a Guard limited-slip differential, along with a lightweight flywheel and race-specification clutch - and with the uprated gearbox having had only two hours of use.


This Porsche Cayman GT4 Race Car is a thrilling track day toy or a great prospective motorsport entrant, which is presented in very good order. Using an acclaimed mid-engined model as the foundation, this car has been upgraded with various lightweight and race-grade components, including carbon-fibre doors, and a fully rebuilt and renewed engine and gearbox. It is ready to drive and enjoy, and is sure to put a huge smile on its next owner’s face whenever they get behind the wheel.

The description of this auction lot is, to the best of the seller's knowledge, accurate and not misleading. Collecting Cars requests a range of detail about the lot from the seller, and performs a level of due diligence. However, bidders must satisfy themselves as to the accuracy of the description, and conduct any research they feel is necessary before committing to a bid. Please see our Terms and Conditions for full details.

Car Overview

  • 10,951 Miles
  • manual
  • LHD
  • White / Livery
  • Black
  • 3.8L
  • VINWP0AC2A81GK191549

Lot Overview

  • Lot #06120
  • private Sale
  • Danbury, CT, USA


  • HK_Motorcars

Exterior  (67)

Interior  (45)

Mechanical  (4)

Documents  (2)

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