After 5 entertaining years with my pampered '05 S Type R, I'm ready to move up to a fresher, lower mileage XF, preferably the 6 cyl. Portfolio or S.  The earlier XF's offer the more traditional interior appointments and am I wrong in that the 2014/15's are the best of earlier models?  The 2016 offers better technology etc. but will I be happy with the slightly less opulent appointments?  Your thoughts, please.  Am I wrong in assuming that in 2-4 months used cars values will be dropping for many reasons,in part due to the Covid-19 issues facing car dealers. Hoping to find a good buy at a Jaguar dealer, preferably on a one-owner trade-in. Any thoughts on Carmax or Carvana?