I owned four Jaguars in my misspent youth. In order, they were:
1960 150S
1957 Mk VII sedan
1966 E type roadster
1966 E type coupe
I have one hundred stories about campaigning them.
I learned auto mechanics from Jaguar Cars and Beck Arnley...
Got it cheap after the original owner and his dealer could not keep it from overheating in CA. After putting in a custom radiator, an oil cooler, a trans cooler for the GM Hydramatic which I had hot-rodded by a shop in Santa Monica, I drove it for years.
It got 12-15 MPG, in town, on the highway, at 30MPH, at 130 MPH. the GM AC always worked, as did the GM Power Windows. Loved all two tons of it. Cruised it many a time between LA and Las Vegas with the 8-track going full blast. Have you ever seen the updated 3.4 Saloons remanufactured by Heritage Motors in England? Beauties!
Flattened while parked! I loved 150's, especially the way the fenders took a while to catch up with the car in sharp bends, but I never owned one!