Jaguar XK120 values: the alloy premium, roadster over coupé, and a market half what it was

The XK120 is the car that made Jaguar’s name, and XK120 values are the highest of any Jaguar road car on this site short of the competition E-Types: 802 recorded sales since 1995, about 50 a year lately, at a median of £63,600, with the middle half between £47,600 and £84,700. Two in three of the cars offered find a buyer, the lowest rate of any Jaguar in the database, because the estimates have been slow to follow the prices down. The spread runs from an £864 rolling chassis to £1.3 million for the Ghia-bodied Supersonic, and the market is international in a way few British classics are, with the majority of the record in North America, where most XK120s were sold new.

The XK120 model guide covers the car, the Jabbeke runs, aluminium and steel and what to check. This page is about the money, and about a market that has halved in real terms while the cars themselves have become more famous than ever.

Alloy over steel, roadster over coupé

The variant table on this page has one line that dwarfs the rest. The 240 aluminium-bodied roadsters of 1949 and 1950, the hand-built originals built over ash frames before Jaguar tooled up for steel, have a median of £176,000 across 41 sales, nearly three times a steel car, and the best reach £250,000 and beyond. The steel cars that followed, the bulk of the 12,000 built, sit close together whatever the body: the roadster at £64,900 across 441 sales, the drophead coupé of 1953 onwards at £60,400, and the fixed-head coupé of 1951 onwards at £57,800, a spread of about twelve per cent from top to bottom. That is far narrower than the E-Type’s, and it says the XK120 market values the car more than the body style.

Competition history is the other multiplier. The 13 cars sold with it have a median of £117,000, roughly double a standard steel car, and an alloy car with it is where the very top of the market lives. Above everything is the Supersonic, the one-off Ghia show car of 1954, whose £1.3 million sale in 2015 tops the record and tells a buyer nothing about any other XK120. At the bottom are the replicas, seven in the record at a median of £19,000, which are honest cars when sold as such.

What moves the price of an XK120

Provenance first, because the XK120’s value is so concentrated in its earliest and rarest cars. An alloy car’s chassis number is known and its history traceable, and a steel car rebodied in aluminium, of which there are several, is a replica whatever its quality. A Heritage certificate confirming the original body, engine, colour and market is the starting point for any serious price, and matching numbers matter on an XK120 as they do on an E-Type. Then the steering wheel: the great majority of XK120s were built left-hand drive for export, and a genuine home-market right-hand-drive car sells at a premium in Britain of perhaps ten to twenty per cent, with a converted car between.

Then the body, which on an XK120 is a separate-chassis construction that rusts at the chassis outriggers, the floors, the sills and the door posts, and on the earliest cars has an ash frame that rots. A full restoration at a specialist runs well into six figures, which is why the £100,000 restored roadster is a car somebody else has paid for and the £45,000 project is rarely the bargain it looks. Originality counts more than on most Jaguars: the correct Moss gearbox, the original instruments, period colours and the rear spats all add, and the modern upgrades that make an XK120 pleasanter to drive, a five-speed gearbox and disc brakes above all, are accepted by users and marked down by collectors. Mileage, on a car that has always been restored, means nothing.

Half the value it had in 2017

The chart shows the clearest boom and bust in the Jaguar record. The yearly median was £44,000 in 2008, £73,000 in 2012, £83,000 in 2015 and £90,800 in 2017, the peak, when the classic-car boom made every XK120 a six-figure prospect. It fell to £68,000 the next year, sat around £70,000 through the pandemic, and then slid to £59,800 in 2024 and £56,800 in 2025, with the 2026 figure so far lower still. Restated in today’s money, the XK120 has lost about half its value since 2017.

The sample effect is smaller here than on the cheaper cars, because an XK120 has never been an online-auction car in the way an MGB is. The fall is mostly real, and it has a cause the Healey and the MGA share: the XK120 was the car of a generation now leaving the market, and the buyers who follow have E-Types and later Jaguars in mind. The alloy cars and the competition cars have held up; the ordinary steel roadster, restored to concours in 2015 and back in the sale room now, has not. For a buyer who wants the original XK, the market is at a ten-year low.

Where XK120s change hands

The best cars, the alloys and the competition history, go through the international auction houses and set the headlines; the steel cars are split between the online platforms, the catalogued sales in Britain and North America, and the specialists. A single fortnight in July and August 2026 shows the spread: a fixed-head coupé at £24,000 at a Yorkshire sale room, roadsters at £47,300 and £53,600 in British sales, a drophead at £51,500 and a fixed-head at £63,500 online in the United States. Whether a recorded price includes the buyer’s premium varies by sale, which is one more reason to read the usual range rather than any single result.

Insuring, restoring, selling

For an agreed-value policy a good steel car belongs around its body’s median and a restored one in the upper half of the range; an alloy car is insured on its provenance. On restoration the arithmetic is the E-Type’s: a six-figure rebuild produces a car worth less than the sum unless the car is alloy or has history, so the sensible buy is the finished car at today’s reduced prices. If you are selling, the spring is the season, the Heritage certificate and the chassis number are what the buyer checks first, and the realistic expectation is the median for the body, not the figure the car was insured for in 2017.

Related

The XK120 begat the XK140 and XK150, which sell for a little less and a little more respectively, and the E-Type that replaced all three, whose Series 1 roadsters now sell for more than a steel XK120. For how all the figures on this site are compiled, see what classic cars sell for.