The final rendition of the XK appeared in May 1957. Easily identifiable by its higher scuttle and door line, and much wider grille, the XK150 retained the mechanical layout of its predecessor; in 210bhp XK150 S form, however, it marked a Jaguar first in having all-round disc brakes, an asset with 0-60mph acceleration of 8.5 seconds and a 125mph maximum. For 1960, the penultimate year of production, the 3,781cc engine was fitted, which in S guise produced 265bhp, sufficient for 132mph and 0-60mph in just 7.5 seconds.
For 1960, the 3.4 litre engine was bored to 3.8 litres, rating this option at 220bhp in standard tune. Four-wheel Dunlop disc brakes appeared for the first time, although it was theoretically possible to order a car with drums. The Special Equipment Model brought wire wheels as standard, twin foglights, overdrive and twin exhaust system to replace standard single pipe. The engine was an uprated engine with a B-Type cylinder head (developed from previous C-Type head).
5 JYB, an XK150 SE Fixed Head Coupe, was first registered on the 23rd July 1960, and is one of only 99 RHD of this version made.
In the car’s previous ownership 5 JYB enjoyed a comprehensive mechanical rebuild by a Jaguar specialist, including a complete new stainless exhaust system, petrol and expansion tanks, and to aide cooling the fitting of a Kenlowe fan. The current owner has turned his attention to the bodywork and trim. Much structural work has been undertaken; new inner wings, door shuts, and A Frames have been fitted. The body was taken back to bare metal, all glass removed, and then repainted in the correct shade of British Racing Green. Finally new seals, bushings and rubbers were added before refitting all glass. The interior was treated to new Connolly hides in Sage Green, with matching inertia reel seatbelts, new Wilton carpets and a new headlining. Photographs of this restoration work are available if required. To complete the transformation new Avon tyres and chrome wire wheels have been fitted on each corner.
The result of this detailed program of restoration works is a car which we are told drives extremely well, with superb brakes, a super smooth transmission, and a lovely torquey engine showing excellent oil pressure, while remaining cool at all times.
Supplied with a full tool roll, owner’s handbook, UK V5 and MoT, this is one XK150 which can only be described as superb.