Background
The XK lineage can be traced back to 1948, when the XK120 burst on to the motoring scene at the Earls Court Motor Show. Looks to die for coupled with a powerful 160bhp six-cylinder engine ensured it soon became a roaring success. And let us not forget the very reasonable price tag of just £1298.
Just 240 of the early alloy bodied cars were produced before steel construction took over, but even so the car remained a performance bargain.
In order to demonstrate their considerable prowess, Jaguar took an XK120 to Jabbeke in Belgium where it clocked over 125mph.
By 1951 a fixed head coupe had arrived, perhaps a little more elegant but lacking the thrills of the rag top. Each to their own. The SE saw a noticeable power increase to 180hp.
1957 saw the introduction of the XK140 and it takes an expert to spot the differences. Clearly Jaguar did not want to alienate existing customers.
A few extra spokes on the front grille, bumper overriders and a boot badge were all that changed visually, but once again the 3.4-litre engine had increased in power to 190bhp, with the SE model rated at 210bhp.
Other changes under the skin included the fitment of rack and pinion steering as standard and the option of overdrive on the gearbox.
The last, and some would say the finest, version of the XK came in the form of the XK150 which was introduced in 1957.
A one-piece windscreen and less pronounced wing lines brought the Jaguar up to date, at least aesthetically.
That trusty old 3.4-litre engine now produced 250bhp in S form, quite an increase in less than a decade. Top speed was now 132mph and the XK150 could sprint from 0-60mph in just 7.8 seconds.
These are impressive figures even today, but can you imagine how that must have felt in the late ‘50s.







