Background
Launched in Coupe and Convertible iterations under Jaguar’s Ford owners, the XK8 was well received from the start. The family resemblance to the E Type was almost universally admired compared to the volt -face performed by the XJ-S’s styling. The fitment of the all new 4L, 32 valve AJ-V8 engine seemed to represent a statement of real intent by Jaguar, too. By 1998 Jaguar were doubling down on that intent with the arrival of the XKR. This high-performance derivative aimed to maximise the latent potential of the XK8’s highly accomplished chassis. A whopping Eaton supercharger was fitted to the AJ-V8 engine, to push power up to a heady 370 bhp lending the XKR a most emphatic turn of speed.
For some tastes, however, even the rip snorting XKR seemed... well... a little tame... a little soft with plenty of straight line urge but with the wrong sort of drama possibly being enacted when the bends arrived. Automotive myth and legend would have it that the suits in Dearborn were happy to keep it that way. They didn’t, after all, want to upset the applecart over at their sports car halo brand, Aston Martin.
This void was filled by a plucky corporate minnow from Bidford-on-Avon, Paramount Performance. Paramount started out as a side venture for the owner of a commercial plant nursery... of course. Founded in the 1980’s, by the 2000’s they were doing a roaring trade in hotting up a range of sports cars but perhaps most notably the XK8. Their flagship Jaguar came in the form of the Paramount Performance XKR 450 Grand Prix.
The 450 refers to the brake horsepower their engine upgrades wrought and the Grand Prix courtesy of the so called F1 Switch Shift gearbox modifications. The engine upgrades included a revised supercharger pulley, remap, improved induction system and more. Back in the day, this alone was a £6,000 plus upgrade. Other major tweaks included the sublime sounding “Tiger Cat” exhaust system, AP Racing brakes and callipers and uprated and lowered springs and suspension.
A review of the time concluded – “A Jag that can take on Italian exotics and still cosset the driver in traditional British luxury.” Enough said.








