2014 Porsche GT3 Cup-Spec Road Legal Track Car

Highlights

• Iconic 3.8-litre flat-six with 7-speed PDK

• Just 15k miles from new

• Full ‘Cup’ conversion (road legal)

• Air jack system installed by PARR (Porsche specialists)

• Cup rear wing

Overview

The 991 GT3 is a masterpiece of modern engineering that successfully bridged the gap between raw motorsport heritage and daily usability. Its crown jewel is a screaming, naturally aspirated flat-six that wails all the way to a spine-tingling 9,000 rpm, while rear wheel steering imbues it with a level of agility that belies its exterior dimensions.

However, this is not your common or garden 991 GT3. This particular example has been transformed and maintained at a cost reportedly approaching £300,000 into a track-ready yet road-legal Cup specification. And that’s not even including the original cost of the original factory car. 

After buying the car new in 2014, the first owner - reportedly an infamous Hong Kong billionaire car collector -  instructed Progressive Motorsport to convert it into a Cup car using genuine Porsche Motorsport parts, while retaining its original road engine and PDK gearbox. 

Building on this, the 3rd Owner spent over £50,000 between January 2020 and April 2021 with Parr Motorsport (costs, we would note, not including some client-supplied parts) who were instructed to go through the car in meticulous detail to carry out any maintenance work required as well as numerous further upgrades. 

These included the installation of a Drexler mechanical limited slip differential, a KMP professional quick release race steering wheel, a modified tune producing 468 bhp at the wheels, an AIM MXG-C dash, an air jack system, fully rebuilt calipers with new Cup discs and pads all round, solid engine mounts, replacement driveshafts, Race Logic HD2 V BOX, AIM reverse camera, AIM shift lights. In addition, they rebuilt and serviced all Intrax 4 way dampers and external reservoirs, and carried a full geometry set up to race spec, and carried out a major service including replacing all fluids and spark plugs.

Weighing in at around 1250kg, the results are nothing short of spectacular and make for a car that retains its road legal status but also make for a formidable track weapon. If you’re looking for the ultimate track day car that you can drive home again afterwards, then this represents a truly mouth-watering option.

History and documentation

• Registered 9 May 2014

• Present owner since November 2023, 3 previous owners

• Current mileage 15,177 miles, verified by the MOT history

• Current MOT with no advisories expires 3 August 2026

• MOT history is excellent with no failures or advisories

• Fitted with a new engine with optimised connecting rod bolts at 845 Kms (525 miles) as part of the Porsche 911 GT3 quality initiative 2014

• This engine was subsequently exchanged by the original owner, with a G series engine in March 2018 at 10,162 miles, at a cost of £27,000

• New G-series engine installed in March 2018

• New gearbox in May 2017 @ 7537 miles

• Car was off the road during 2019 and from 2021-2023

• Significant collection of invoices for servicing, maintenance and all conversion work/modifications

• Spreadsheet showing the first few years of service history up to 10,397 miles

• All invoices from work carried out by Parr Motorsport are present

• Vehicle Health Check and Geometry alignment carried out by JZM Porsche in Feb 2024 @ 12,538 miles

• V5 present in owner’s name

• HPI clear

• ULEZ compliant 

Interior

• Fixed back Recaro bucket seats, finished with black Nappa leather upholstery and white contrast stitching

• KMP GT3 quick release wheel fitted with buttons for quick ESC/TCS/Sport access

• Carbon shift paddles

• Black carpets

• All of the controls and switchgear appear to be in very good condition, with no significant wear to note

• Interior stripped out: Super cup carbon doors installed, electric windows removed, headliner removed etc.

• Reversing camera fitted

• Aftermarket TPMS fitted

• Internal kill switch wired in

• Driver cooling upgrade

• RSR door foam fitted

• PCM unit replaced with Speedster cubby box and Garmin Catalyst mount

• 991 Cup accelerator foot plate

• AIM shift lights and digital dash / race computer

• Race Logic HDR Vbox

• Fire extinguisher installed in passenger footwell

• The ‘frunk’ space is neatly trimmed with black carpet

• Cup FIA compliment full roll cage welded to the chassis

• Schroth Racing six-point harnesses

• Everything in the cabin looks to be in good order, with no obvious damage or issues to be seen

• The vendor reports no faults with any of the cabin’s features and functions

Exterior

• Supplied from the factory with white paintwork

• Resprayed in March 2015 by Autofarm’s bodyshop, in Blu Elettrico Viola with silver and yellow over-stripes to the bonnet, roof and engine cover (DVLA notified and V5 updated)

• Super cup carbon doors

• The conversion to Cup spec includes: Cup front wings, front wheel arch extensions, Cup front and rear bumpers, fold-out front and rear towing eyes recessed into the Cup bumpers, Cup front splitter, Cup race bonnet with NACA ducts and quick-release pins, an adjustable carbon-fibre Cup rear wing with lightweight uprights, Cup hubs and wheel carriers, Cup carbon-fibre rear engine lid with air scoop and quick-release engine lid pins.  

• All of the bodywork looks to be straight and clean, with no obvious signs of damage, dents or misalignment

• There is some minor “track rash” in the form of small marks and minimal stone chips as you’d expect, this is mostly on the front of the car and around the wheel arches

• Porsche GT3 Cup perspex window kit fitted – side windows, rear quarters and rear screen

• External kill switch fitted to the scuttle panel

• Quick release pins to the bonnet and engine cover

• Porsche branded sunstrip to the front windscreen

• Naca ducts installed in the bonnet

• OZ Racing Ultimate forged 20-inch centre-lock, 11-spoke alloy wheels, finished in silver; all show well with no evidence of notable damage or lacquer peel

• The wheels are fitted with a matched set of Nankang CR-S tyres, 245/35 at the front and 305/30 at the rear – all look to be in fine fettle, with no sidewall damage we could discern

Mechanical

• Under the rear engine lid sits a naturally aspirated ‘G-Series’ 3.8-litre flat-six, tuned by Parr Motorsport to 468bhp at the wheels (what a standard 991 GT3 develops at the flywheel) with forged pistons, titanium con-rods and a dry sump

• Motorsport gearbox oil cooler which is controllable from the cockpit by an adjustable temperature control display.   

• Redlines at 9,000rpm

• Rear-wheel drive

• 7-speed PDK transmission with paddle-shifters

• Factory performance figures: 0-62mph in 3.5 seconds and a top speed of 196mph - this should do significantly better

• Sport mode

• TCS, ESC and cruise control

• New G-series engine installed in April 2018

• New gearbox installed in May 2017

• Supercup front and rear antiroll bars

• Supercup airbox

• Drexler LSD fitted by Parr Motorsport in April 2021

• Porsche Motorsport Cup front and rear camber arms with spherical bearings, forged upper and lower control arms, tie rods, toe links and drop links 

• Strut brace and adjustable blade-style anti-roll bars with seven settings 

• Four-way adjustable Intrax suspension with built-in spring rate adjusters, helper springs, with adjustable low speed bump, high speed bump, compression and height 

• Porsche Motorsport Cup-specified Performance Friction nickel-plated lightweight six-piston front and four-piston rear callipers 

• Porsche Motorsport Cup-specified Performance Friction fully floating 380mm steel discs and lightweight aluminium bells 

• Performance Friction 331 and 332, 25mm brake pads 

• Porsche Motorsport Cup front and rear brake cooling system

• Goodridge braided brake hoses all round

• Liteblox Motorsport lithium battery weighing 2.8kg, with smart-app control.

• Stainless Canton expansion tank

• January 2020 - work carried out by PARR (Porsche specialists) including: fabrication and installation of air jack system, brake calipers rebuilt with PFC pistons, solid engine mounts fitted, new oil pump fitted

• November 2020 - work carried out by PARR (Porsche specialists): ECU remap to 468bhp at the wheels

• July 2024 - new Cup brake pads fitted all round

• The car sounds incredible, as you might imagine

• The car starts, idles and drives just as it should, with no faults or mechanical issues reported, as can be seen in the walk around video.

• The seller also notes that the Cup hubs can be fitted with Cup race series 18” wheels if required and the owner has 3 sets of Cup wheels with brand new slicks and race wets that are available via separate negotiation

Summary 

This 991-generation Porsche 911 GT3 is an impressive and highly modified example of the acclaimed modern performance car, which has been transformed and maintained at a cost approaching £300,000 into a track-ready yet road-legal Cup specification. 

Presented in a stunning Blu Elettrico Viola finish with silver and yellow over-stripes to the bonnet, roof and engine cover and boasting a raft of desirable aftermarket and Porsche Motorsport Cup-specified performance, weight-saving and track-focused upgrades, it would make a notable addition to any high-performance collection, and a highly competitive race series entrant.   

To arrange a viewing, click the 'Book Viewing' button located under the 'Place Bid' button. Viewings can be booked up until the day before the auction ends, after which the option will change to 'Contact Seller' for further enquiries. This seller is located in Surrey.