I found the attached story by Richard Owen on the internet. A portion of the content is quoted as:
"Although the standard XJ220 was clothed in a lightweight aluminum body, TWR's version replaced every panel, expect the doors, with carbon fiber. In doing so they added a front splitter, wider sills and an adjustable rear spoiler that gave the car an imposing edge and made the standard XJ220 look docile.
Overhauled out to 680 bhp, TWR took the twin-turbo V6 to its limits. Combined with a weight reduction that removed the stereo, air conditioning and heavy seats, the car could accelerate to 60 mph in 3.3 seconds and reach 228 mph."
Jaguar XJ220 S TWR