Mine would have to be a MKII Zephyr or Zodiac if not then a MKIII Zephyr or Zodiac. Although got to admit I do love the P5's as I had 2 in the early 70's as taxis. I had the 3,5 Coupe on a 'E' (67) reg and a 3.5 Saloon on a 'B' (64) plate. Had these 2 together. Made their money back very quickly. They were bloody good workhorses! Also had MkIII Zephyr 4 and MKIII Zodiac 6 in the stable as well. Drove the P5 Coupe to Blackpool and back in 1973. Beautiful drive. Total comfort. Loved all 4 of these cars and still do. They have got to be my alltime favourite cars.