Key answer
The S1 revealed by Gordon Murray Special Vehicles is a limited-production V12 manual supercar restricted to just 64 units worldwide. It made its global debut at The Quail during Monterey Car Week on August 14, 2026, combining a 4.2-liter naturally aspirated Cosworth V12 with a six-speed manual transmission. Its stated maximum output is 690PS, with a maximum engine speed of 12,100rpm.
However, viewing the S1 simply as another high-performance derivative of the S1 LM risks missing the point. Although developed from the S1 LM platform, the S1 has been tuned with a more touring-oriented character. Rather than emphasizing an extreme high-downforce image, Gordon Murray Special Vehicles has positioned the S1 as a refined limited model designed for road driving and long-distance travel.
Why it is making headlines now
The reveal has attracted attention because of the clarity of its combination. A naturally aspirated V12, 12,100rpm redline, six-speed manual transmission, central driving position, three-seat layout, and production limited to 64 cars all come together in one model. Its shift toward a more comfortable touring character while retaining the S1 LM foundation is another key distinction.
The S1 removes the S1 LM’s fixed large rear wing, long front splitter, and deep side skirts. In their place is an integrated active rear aero system. Car and Driver also reported that, apart from the roof, the S1’s body panels differ from those of the S1 LM.
Confirmed specifications
The S1 is powered by a 4.2-liter naturally aspirated Cosworth V12. According to the official announcement, maximum output is up to 690PS and maximum engine speed is 12,100rpm. The transmission is a six-speed manual with touring six-speed gearing as standard.
Production is limited to 64 cars worldwide. Each vehicle will receive an individually commissioned specification for its owner. Pricing was not disclosed in the official announcement. Accordingly, estimated prices or allocations for specific markets should not be treated as confirmed information.
A different direction from the S1 LM
The S1 retains the central driving position and three-seat layout. However, its interior and driving character have shifted toward long-distance usability. Additions include leather, bespoke textiles, improved sound insulation, a revised infotainment screen, and lightweight audio equipment.
Ultimately, the S1’s defining feature is not a more extreme expression but a different balance. It removes the S1 LM’s most extreme aerodynamic hardware and adds active rear aero along with a touring-focused interior. The most accurate interpretation of the confirmed facts is a 64-unit limited model that combines the rarity of a 690PS V12 manual supercar with long-distance road-going usability.
Points to know
The S1’s price has not been officially disclosed. Some reports may mention its allocation status, but the key officially confirmed facts are worldwide production limited to 64 cars and individually commissioned specifications for each owner. It is also safest to use the official output figure of 690PS.