Skip advert
Advertisement

Tuthill Porsche 911K restomod revealed with 11,000rpm flat-six

The Banbury-based Porsche restoration house has planned a series of heavily reworked classic 911s, featuring carbon body panels and rally-spec suspension

Porsche motorsport specialist Tuthill has joined the likes of Singer, Guntherworks and Theon in creating a thoroughly revised classic 911 for the road. Called the 911K, Tuthill’s offering draws from the firm’s rally and circuit racing experience, with motorsport-derived components, an uprated engine and a retrimmed interior. 

The 911K takes inspiration from Porsche’s RS models from the 1970s, albeit with new carbon fibre body panels. The redesigned front bumper is fashioned from the lightweight material, as are the front wings and bonnet. Tuthill has also chosen carbon fibre for the roof, doors, rear bumper and engine lid, as well as the swollen rear quarter panels.

Those pumped-up arches house Fuchs-style carbon fibre wheels, and there are carbon ceramic brakes at each corner with bespoke Tuthill calipers. To dial in the car’s setup for challenging b-roads, two-way adjustable rally-spec dampers have been fitted, along with titanium torsion bars and anti-roll bars.

Advertisement - Article continues below

The engine is an uprated 3.1-litre unit that revs to 11,000rpm, although Tuthill hasn’t provided exact power figures. Given that the 911K weighs just 850kg, blistering performance is expected - especially given that Tuthill has installed a magnesium-cased six-speed gearbox, with an extra ratio than standard to make better use of the motor’s potential.

The gearbox cross-member is made from carbon fibre, as is the rear bulkhead. There’s a titanium roll cage too, which should improve the stiffness of the shell to better deal with coarse road surfaces. 

Given that Tuthill is inherently geared towards motorsport engineering rather than lavish detailing, the cabin is largely free of clutter. Tuthill has primarily focused on the driver’s main contact points, with a pair of carbon fibre seats, a new steering wheel and a bespoke pedal box. There’s also a hydraulic handbrake, which juts out of the floor next to a titanium-topped gear lever. 

Continuing with the lightweight theme, the dashboard and door panels are carbon fibre items, and buyers will be able to specify their own upholstery and trim options during the build process. Tuthill plans to build a series of 911K restomods, and the price of each could vary significantly based on mechanical specification and bespoke design requests. 

Now read our full review of the Porsche 911 Sport Classic...

Skip advert
Advertisement
Skip advert
Advertisement

Recommended

Best performance cars to buy 2026
Best performance cars 03/26

Best performance cars to buy 2026

Performance cars have reached new heights of speed and interaction - here’s a list of our ten favourites from the current crop
Best cars & vans
10 Mar 2026
Singer’s new Porsche 911 Carrera Cabriolet Reimagined is a glorious 1980's throwback
Singer 911 Cabriolet - front and rear

Singer’s new Porsche 911 Carrera Cabriolet Reimagined is a glorious 1980's throwback

Open-top variant is now available for the classic 911 Carrera Coupe from Singer
News
13 Feb 2026
New Porsche 911 GT3 RS facelift spotted going sideways in the snow
Porsche 911 GT3 RS - front 3/4

New Porsche 911 GT3 RS facelift spotted going sideways in the snow

More speed, more engagement and more crazy aero are on the cards for Porsche’s facelifted road-racer
News
26 Jan 2026
Best summer cars 2026: our top choices and where to drive them
Best summer cars - header image

Best summer cars 2026: our top choices and where to drive them

The Auto Express team list their dream wheels for the warmer months
Best cars & vans
19 Jan 2026

Most Popular

Long-term test: BYD Sealion 7
BYD Sealion 7 - front tracking

Long-term test: BYD Sealion 7

Second report: all is not rosy in the garden when it comes to driving our BYD
Long-term tests
13 Mar 2026
Kia PV5 Passenger vs Vauxhall Vivaro Life: can South Korea’s MPV beat a home-grown rival?
Kia PV5 Passenger vs Vauxhall Vivaro Life - front angled

Kia PV5 Passenger vs Vauxhall Vivaro Life: can South Korea’s MPV beat a home-grown rival?

Kia is entering new territory with its quirky van-based PV5 electric MPV. Vauxhall’s Vivaro Life is a benchmark rival, so can the South Korean newcome…
Car group tests
14 Mar 2026
Long-term test: Toyota Prius Excel
Toyota Prius Excel - header with charging cable

Long-term test: Toyota Prius Excel

First report: Surprises galore as Mk5 version of hybrid pioneer joins fleet
Long-term tests
15 Mar 2026

Find a car with the experts