Saw a 15 year old one of these on the ferry going across Lake Windermere at the weekend.
It was a red wide bodied Jaguar XJS, but it had Lister badges all over it. So I got chatting to the owner and he said it was 15 years old, he'd had it for 10 years and was a special build by Lister, called the Le Mans version or something.
For an XJS it looked bloody great and sounded awesome.
We got onto figures and it was a V12 with 535bhp and 550 lbs/ft torque
He said the torque was so high you could set off in 5th gear and go onto 190mph in the same gear
He also said it did 10mpg!!
I didnt get any pics, but a quick Google gives:
http://www.qv500.com/adsvendorlister.htm