It had a 7.0L V12 engine based on that of a road ... when it replaced the Maserati engine in its own race car with the 3.4L inline six-cylinder Jaguar XK engine conceived for the D-Type racer ...

This engine produces about 690 horsepower in race-trim, a power figure it achieves ... By comparison, the Jaguar's racing V12 produced a little over 700 horsepower from 7.0L.

It features a supercharged V12 engine hooked up to a manual gearbox, race-inspired ... Could it be everything fans of the XJS wish Jaguar had once built for itself, or a restomod too far?