Description Owned from new by F1 driver John Campbell-Jones and has remained in the family ever since; lightly restored in 2005 including full repaint, new fuel tanks and stainless steel exhaust; for recommissioning following 16 years in storage To those in the know, the 420 is perhaps the ultimate classic Jaguar saloon.

Bigger and more luxurious than the MkII that it replaced, it also had superior ride and handling thanks to its independent rear suspension.

The front-end styling was like a scaled down MkX and the 4.2-litre engine was virtually to E-Type spec, producing 245bhp and 283lb/ft of torque with a top speed of 125mph and a 0-60 time just under 10 seconds.

Further refinements included optional power steering, dual circuit brakes, alternator electrics and a limited-slip differential.

Priced at £2,064 including tax, it was less than half the price of a Bristol 410 Saloon and less than one-third the price of a contemporary T-Series Bentley but was easily the equal of both thes...