www.jec.org.uk

Hi all. I have a 1985 XJ6 4.2 Sovereign and can't seem to find how much it would have cost new back in 1985. Anyone know or can direct me. Parkers Guide do not go back that far.
Thank you

Hi MikeyN58,
There is some info here:
https://drive-my.com/buying-guide-jagua ... spectively.
Info below taken from the above link:
The full range at the start of the XJ6 Series III’s career kicked off with the 3.4- and 4.2-litre models, priced at £13,259 and £14,809 respectively by the end of 1979. Buyers wanting the ultimate in XJ6-style luxury however, could upgrade to the Daimler 4.2 Sovereign and 4.2 Vanden Plas, listed at £15,387 and £20,384 respectively. That made the Vanden Plas roughly 40% dearer than the XJ6 with the same 4.2-litre engine, which inevitably meant far lower sales of the most expensive six-cylinder Daimler.
The end of the Series III XJ6’s career brought a little more choice, with the full range of Jaguar-badged six-cylinder models consisting of the XJ6 3.4 (£15,595), XJ6 4.2 (£16,995) and Sovereign 4.2 (£20,795) by early 1986. The only six-cylinder Daimler at that late stage was the 4.2, priced at £25,195.
Hope that helps and enjoy your XJ6.
Take care.
Andy

In 85 my Dad had a 2.8i Ghia X, the Scorpio had just arrived and he went to buy one. All in it was about £21k. I told him that he could have a XJ6 Sov for the same price, we then went to HA Fox and drove one. He ordered the V12 Sov instead, it was I think £23k back then.... good value against the Scorpio, don't think I would've restored the Ford nor spent the $$$$ i have on the Sov V12...