The Tuthill GT ONE is a limited-production, road-focused sports car inspired by the FIA GT1 era—not a Porsche-built 911 GT1 or an established continuation of one. Tuthill announced the project on 16 August 2024 and says it will build 22 examples, each with a carbon-fibre body and a choice of naturally aspirated or forced-induction 4.0-litre flat-six.
What is the Tuthill GT ONE?
The GT ONE is a bespoke road car from British specialist Tuthill, styled by California-based designer Florian Flatau. Tuthill says the project began in a conversation between company principal Richard Tuthill and client Elliot Ross. The firm presents the car as an interpretation of the FIA GT1 period, with the emphasis on making a road car rather than recreating a specific race car.
That distinction matters: the available Tuthill material does not identify a Porsche donor platform or establish shared architecture with the Porsche 911 GT1. “GT1-inspired” describes the design brief, not a technical lineage. Tuthill’s launch announcement and its GT ONE project page describe the project and its announced specifications.
What does the GT ONE offer?
Tuthill’s published figures are manufacturer-announced specifications, not independent test results. The company says customers can choose between two versions of its 4.0-litre flat-six:
#1 Best Overall
- Brand new box
- Real rubber tires.
- Detailed interior, exterior, engine compartment.
- Has Removable Front and Rear Cover
- Made of diecast metal with some plastic parts.
| Announced configuration | Power claim from Tuthill | Transmission choices |
|---|---|---|
| Naturally aspirated 4.0-litre flat-six | More than 500 BHP | Seven-speed dual-clutch or manual equivalent |
| Forced-induction 4.0-litre flat-six | More than 600 BHP | Seven-speed dual-clutch or manual equivalent |
The announcement does not provide independent performance measurements or further detail about the engine’s construction. The transmission wording indicates a dual-clutch option and a manual equivalent; it does not specify gear ratios or other transmission details.
Chassis, body and braking
Tuthill lists a full carbon-fibre body, twin-wishbone suspension at both ends, carbon-ceramic brakes, bespoke calipers and an Inconel exhaust. It gives the car’s weight as 1,200 kg and says each customer car takes 3,500 build-hours. These are the manufacturer’s stated figures; the announcement does not describe a weighing method or define the weight convention.
Rank #2
- Package Dimensions: 39 L x 7 H x 25.8 W (inches)
- Package Weight: 14.8 pounds
- Country of Origin : Philippines
Tyres
Tuthill names Michelin as a project partner and specifies Michelin Pilot Sport 4 S tyres. Its published material does not give GT ONE tyre dimensions or establish that every customer car uses the same fitment, so the model name alone is not enough to determine a replacement size.
How does it relate to Porsche’s 911 GT1?
The Porsche 911 GT1 is a competition-car reference point, while Tuthill describes the GT ONE as a road-focused creation inspired by the broader FIA GT1 era. Porsche says the 911 GT1 debuted in competition in 1996. Its 1998 version used a mid-engine layout and Porsche’s first carbon-fibre chassis. Those facts provide context for the era, but they do not demonstrate that Tuthill’s car shares the Porsche’s layout, chassis or platform.
Rank #3
- 1:18 scale collector's car made of metal
- Very high quality miniature model
- Precise finishes and realistic details for a faithful reproduction
The specifications below put the published figures side by side, but they are not a like-for-like test comparison. Tuthill’s figures describe announced options for a road-focused bespoke car; Porsche’s figures refer to the specific 911 GT1 ’98 competition car.
| Specification | Tuthill GT ONE | Porsche 911 GT1 ’98 |
|---|---|---|
| Purpose and context | Road-focused, GT1-inspired project; Tuthill, 2024 | Competition car; Porsche says the 911 GT1 debuted in competition in 1996 |
| Engine and output | 4.0-litre flat-six; more than 500 BHP naturally aspirated or more than 600 BHP forced-induction, according to Tuthill’s 2024 announcement | 3,220 cc and 404 kW (550 HP), according to Porsche’s 911 GT1 ’98 page dated 13 January 2026 |
| Layout and chassis material | Not stated by Tuthill in the cited material | Mid-engine layout and Porsche’s first carbon-fibre chassis, for the 1998 version |
| Weight | 1,200 kg, stated by Tuthill; weight convention not specified | Not stated on the cited Porsche page |
| Top speed | Not stated by Tuthill in the cited material | 310 km/h, according to Porsche’s 911 GT1 ’98 page dated 13 January 2026 |
| Transmission | Seven-speed dual-clutch or manual equivalent, announced by Tuthill | Not stated on the cited Porsche page |
Porsche’s historical specifications are on its 911 GT1 ’98 technical page. Differences in purpose and specification context mean the figures should not be read as a direct performance ranking.
Rank #4
- Hot Wheels Porsche 911 GT1-98, [White] 1999 First Editions 25/26
Why build only 22?
Tuthill says it plans to build 22 production examples. It also says each customer car requires 3,500 build-hours, indicating a highly labour-intensive project rather than a mass-production model. The announcement does not provide a price, public ordering process, jurisdiction-specific road-approval details or current production and delivery status; those points are not established by the cited Tuthill pages.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the designers say about the idea
Richard Tuthill described the inspiration and road-car focus this way: “The FIA GT1 class enabled manufacturers to create stunning race cars. We have taken the best bits but focused on producing a wonderful road car… I hope you can all enjoy it with us!”
Best Value
- PREMIUM QUALITY: Constructed with durable die-cast metal body, featuring clear windows, detailed interior, and precision-engineered components
- Pullback Action
- FUNCTIONAL FEATURES: Opening doors and pull-back motor action provide interactive play experience while maintaining collector-grade detail
- PERFECT DISPLAY SIZE: Compact 5-inch length makes it ideal for showcasing, with proportionate dimensions that capture the iconic sports car's essence
- COLLECTIBLE VALUE: Meticulously crafted replica perfect for die-cast car enthusiasts and Porsche fans, suitable for ages 3 and up
Florian Flatau framed the design as a personal response to the period: “I would never have imagined that I would one day be entrusted with the freedom, in this environment, to revisit the spirit of an automotive era like that of the FIA GT1 class; it’s a very deep and personal experience for me.”
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