Though the TS1 GT shares a similar chassis and body with its predecessor, the ST1, its new powertrain and upgraded interior earn it a new model designation along with the 'grand tourer' qualification.

[6] The car uses double wishbone suspension coupled with adjustable shocks and composite anti-roll bars on the front and rear axles.

Launched alongside the TS1 GT at the 2016 Geneva Motor Show, the TSR shares most of its mechanical components with the road-legal car, including the same engine and body.

[9] The TSR's interior includes a full roll cage and 6 point harnesses, with the infotainment system of the TS1 GT having been removed to save weight.

Unveiled at the 2018 Geneva Motor Show, the TSR-S features numerous upgrades and design changes compared to the previous TS1 models and sits in-between the road-going, grand touring TS1 GT and the race-focused, track only TSR.

The primary differences include an uprated version of the 5.8-liter twin-supercharged V8 now producing 1,014 kW (1,379 PS; 1,360 hp), and a reduced downforce setup with a smaller, fixed wing and aerodynamic wheel covers.

[13] The TSR-GT also features a more luxury-oriented interior, with leather upholstery in place of bare carbon fiber of previous TSR models and measures to reduce cabin noise.