Beautiful cars! SNG Barrett the Stag specialists in Bridgenorth used to have a silver 220. 1st one i`d ever seen & probably only seen 2 since in 30 years. Here`s another beautiful Jag which i suspect Mactech had dealings with???
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My input into the XJR15 was restricted to race engineering the cars in the race series which supported the 1991 F1 Grand Prix.
My abiding memory is of Tiff Needel attempting to take Eau Rouge flat on his first pass on new tyres. Not a good look!
I felt the car was thinly disguised XJR9 race car with all the good bits taken away, ie. the downforce. The big old V12 was just about tolerable with a huge blanket of downforce to keep it on the road, but with that removed, it was a very difficult car to drive. I tested the car against 220's and on the steering pad at Milbrook. I could hold the 220 in a slide at most angles, but my talent ran out as soon as there was a hint of overseer in the 15 and resulted in a spin.
This trait was soon obvious in the race series which was won, not by an F1 driver, but by a really good German touring car driver Armin Hahne.
He just thought it was a very powerful touring car, whilst most of drivers with downforce experience thought it was awful without downforce to help them.
I met up with Armin last year at the members meeting at Goodwood last year when we had a flock of 15 XJR15's together for the first time since the race series.
Oddly, we all seem to have aged by 30 odd years...