Interesting Dave. I did own an XJ12 for a short while around 1980 but only because a work colleague offered it at a bargain price. Sadly it was a carbed version and could never get to grips with the Strombergs.
Around the same time I recall attending a round of the touring car championship at Silverstone. The main contenders were big BMW's and a pair of Tom Walkinshaw prepared XJ12's. The Jags were consistently a little faster but thirsty. The end of the race was particularly gripping with the Jags desperately trying to claw back the lead after yet another refuelling stop late in the race. Despite gaining two seconds a lap though they simply ran out of time.
