The 2026 Jensen Interceptor GTX emerges as a track-only development prototype powered by a supercharged 6.8-liter V8 engine delivering 973 horsepower, serving as engineering groundwork for a planned return of road-going grand tourers from the revived British brand according to Jensen International Automotive.
British Engineering Meets American V8 Power
Jensen sources its massive powerplant directly from General Motors before shipping the block to Late Model Engine located in Texas for a complete overhaul. Technicians utilize CNC machining for the cylinder heads, install lightweight titanium valves, and upgrade the entire rotating assembly to handle extreme loads. A standalone Motec engine management system controls the setup, squeezing 973 horsepower out of the block with potential tunes capable of reaching up to 1,200 horsepower.

Power routes via a manual gearbox, creating a mechanical analog experience rarely seen in modern high-output track specials.
Did You Know? While the current iteration of the Interceptor GTX is strictly restricted to the track, engineers built the chassis specifically to establish the baseline parameters needed for future street-legal production cars.
Road Car Development Plans and Future Lineup
Jensen International Automotive intends to use ongoing race track testing of the Interceptor GTX prototype to refine vehicle dynamics for public consumption. Company plans detail two distinct production variants slated for the future: a comfort-focused grand touring GT and a more aggressive sporting GTR model. Both variants will share core structural and mechanical DNA with the current track mule.

Company representatives have not yet announced a definitive timeline or release date for when the production road cars will officially hit the market.
Pro Tips for High-Horsepower Track Builds
Frequently Asked Questions
What engine powers the Jensen Interceptor GTX?
The track car features a heavily modified, supercharged 6.8-liter V8 engine originally sourced from General Motors and rebuilt by Late Model Engine in Texas.
How much horsepower does the Interceptor GTX produce?
According to Jensen International Automotive, the engine currently generates roughly 973 horsepower, with tuning capacity allowing outputs up to 1,200 horsepower.
Will there be a street-legal version of the Interceptor GTX?
Yes. Jensen plans to use data gathered from developing the track-only race car to launch both GT and GTR road-going grand touring models in the future.
Join the Discussion
What do you think of a manual-transmission, 973-horsepower British grand tourer powered by American muscle? Share your thoughts in the comments below, or subscribe to our newsletter for the latest updates on niche supercar revivals.
Related reading