1957 Jaguar XK150 3.4 Roadster


1957 Jaguar XK150 3.4 Roadster

1957→1959 Jaguar XK150 3.4 Roadster

The third and final model in the XK line was the XK150. Easily identified by its new curved windshield, this model benefited from years of development since the first XK120 was launch in 1948. Jaguar described the roadster as “the same as the Hardtop Coupe, but with a convertible top, covered in the finest mohair, with fully lined interior, completely concealing the hood mechanism. Added seating accommodations in the rear for two children or one adult.”

One of the most important developments of the XK150 was the adoption of Dunlop disc brakes. These were often the focal point of the brochures which explained how the disc brake was first used on the Le Mans-winning C-Type of 1953.

Two of the available options for the XK150 included an automatic transmission and wire wheels.

An optional Special Equipment Model was available which used the B-Type cylinder head and twin SU HD6 carburetors for 210 bhp. Other refinements included wire wheels, dual exhuast, windscreen washers. Above and beyond the SE model was the S-Type which used a straight-port cylinder head and three HD8 SU carburetors for 250 bhp @ 5500 rpm.

1957 Jaguar XK150 3.4 Roadster Gallery

In Detail

type Series Production Car
production years 1957 – 1959
built at Coventry, England
engine Inline-6
position Front, Longitudinal
aspiration Natural
block material Cast Iron w/Aluminum Cylinder Heads
valvetrain Chain-Driven DOHC, 2 Valves per Cyl
fuel feed Twin SU Carburetors
displacement 3442 cc / 210.04 in³
bore 83 mm / 3.3 in
stroke 106 mm / 4.2 in
compression 8.0:1
power 141.7 kw / 190 bhp @ 5500 rpm
specific output 55.2 bhp per litre
bhp/weight 131.03 bhp per tonne
body / frame Steel over Steel Chassis
driven wheels RWD
wheel type Steel Discs or optional Spoked Wires
front tires Dunlop 6.00×16
rear tires Dunlop 6.00×16
front brakes Dunlop Discs w/Power Assist
rear brakes Dunlop Discs w/Power Assist
steering Rack & Pinion
f suspension Wishbones w/Torsion Bars, Telescopic Shock Absobers
r suspension Live Axle w/Half-Elliptic Springs, Telescopic Shock Absobers
curb weight 1450 kg / 3197 lbs
wheelbase 2590.8 mm / 102 in
front track 1310.6 mm / 51.6 in
rear track 1310.6 mm / 51.6 in
width 1333.5 mm / 52.5 in
transmission 4-Speed Manual w/Optional Laycock Overdrive
tran clutch Borg & Beck 10in
fuel capacity 63.65 litres or 16.80 gal.

Auction Sales History

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150 S 3.4 Roadster T 831811 DN
– sold for $341,000
Concours-winning, 100-point JCNA, Reggie Ray restoration. Timelessly elegant in deep blue over grey leather. Desirable Laycock de Normanville overdrive. Matching numbers, as confirmed by its Jaguar Daimler Heritage Trust Certificate. In the 1990s, this blue XK150 Roadster was restored to an impressively correct, award-winning standard by late Jaguar expert Reggie Ray in his Pennsylvania shop.
Auction Source: 2015 Amelia Island by RM Sotheby’s

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150 S 3.4-Litre Roadster S830420DN
– sold for $140,250
High-Level Restoration Completed in 2013. Recently Displayed at Classic Sports Sunday at Mar-a-Lago. Beautifully Presented in Carmine Red with Tan Leather Interior. One of just 888 3.4-Litre S Models Built. Accompanied by Books, Tools, and JDHT Certifcate.
Auction Source: The 2015 Amelia Island Auction by Gooding & Company

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK 150 3,4L S Roadster T832062DN
– sold for €110,200
This Jaguar roadster from 1959 was therefore one of the first generation of the XK150, equipped with a 3.4-litre 250 bhp SAE engine, with three SU HD8 carburettors and Straight Port cylinder head. It was delivered new to the state of New York, where it stayed until bought by a collector from California, in 2008. The car already had its additional headlights and appears to have kept all its original equipment. The Jaguar Heritage Certificate for the car confirms that the engine and the gearbox are the ones that were fitted in the car originally. Presented in Imperial red with a splendid black interior, this beautiful example had major work carried out at the start of 2013 by Jaguar Service in Holland, who refurbished the engine, carburetors and brakes for a sum of €5,700, to ensure that this sports car performs as it should. Sold with its Jaguar Heritage Certificate, original manuals and toolkit, this superb automobile is a great example of the most successful XK model that is raring to head out onto the B roads.
Auction Source: Rétromobile 2015 by Artcurial Motorcars

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150 3.4 Roadster S830118DN
– sold for $99,000
Highly original, low mileage example. Equipped with overdrive. Largely original paint and convertible top. Great entry for Preservation Class Concours showings. The final evolution of the original XKs.
Auction Source: 2014 Quail Lodge Auction by Bonhams

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150 S 3.4-Litre Roadster T-831946-DN
– sold for $167,750
Matching-Numbers Example. One of Just 888 Examples Built. Striking Color Combination. Awarded Over 99 Points in JCNA Concours. Restored to a Very High Standard. Accompanied by a JDHT Certificate.
Auction Source: The Amelia Island Auction by Gooding & Company

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150S 3.4-Liter Roadster T831474DN
– sold for $165,000
Comprehensive restoration by Classic Showcase. Sensibly upgraded for long-distance touring. Matching numbers original engine. Jaguar Heritage Certificate included. Genuine high-performance ‘S’ model.
Auction Source: 2013 Quail Lodge Auction by Bonhams

1957 Jaguar XK150 3.4 Roadster
1956 Jaguar XK140 MC 3.4 Roadster S812680
– sold for $151,250
Equipped with the desirable “MC” package. Body-off restoration by Jaguar specialists. Accompanied by a JDHT Certificate.
Auction Source: 2013 Monterey Auction by RM Auctions

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150 S Roadster T831359 DN
– sold for $110,000
Engine Upgraded to Powerful 3.8-Litre Specifications Multiple Concours Winner. Accompanied by Jaguar Daimler Heritage Trust Certificate. Jaguar’s Ultimate XK.
Auction Source: The 2013 Amelia Island Auction by Gooding & Company

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150 S 3.4 Roadster T832062DN
– sold for $101,750
The S Roadster offered here was originally delivered to New York State, where it remained until its present owner, a respected California-based collector, acquired it and took it to the West Coast about a year and a half ago. Equipped with dual fog lamps and chrome wire wheels, it is a wonderful “driver” with a fabulous exhaust note, and it is complete with its original tool kit, even with the full set of tools within. The car is accompanied by its original Jaguar Daimler Heritage Trust certificate, all-important in verifying the history of these cars, and it confirms that this car is “numbers matching” and as it was when it was originally delivered in 1959.
Auction Source: 2013 Arizona Auction by RM

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150 S 3.4-Litre Roadster T832026DN
– sold for $159,500
JDHT Documented Matching-Numbers Example. Presented in Factory-Delivered Color Combination. First in Class at a JCNA Event. Meticulously Restored to Show Standards.
Auction Source: The 2013 Scottsdale Auctions by Gooding & Company

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150 3.4 S Roadster 831369DN
– sold for €72,800
This XK150 was dispatched to Jaguar Cars, New York and sold to its first owner, R.Y. Gibson of Prairie Village, Kansas, on 1st October 1958. Originally finished in Cotswold Blue with a matching blue soft top and red interior, it was later repainted to the striking red exterior with contrasting tan top and interior that it wears to this day. Additionally, it was upgraded from the standard 3.4-litre engine to the more powerful 3.8-litre unit. … read more
Auction Source: Monaco 2012 by RM Auctions

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK 150 S Roadster T831419DN
– sold for $92,400
Completed in its original color combination of Carmen Red over black leather with a black canvas top, this lovely XK150 S Roadster benefits from a well-kept older restoration. Originally equipped with Jaguar’s four-speed manual gearbox and optional overdrive, the Roadster has been refitted with a synchromesh, five-speed gearbox, giving it a more spirited feel on the road.
Auction Source: The Amelia Island Auction 2012 by Gooding & Company

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150SE 3.4-Litre Roadster S830223
– sold for €73,000
A sought after ‘Special Equipment’ model equipped with the desirable manual gearbox, this left-hand drive XK150 until recently formed part of an extensive private collection in Italy. Restored to a high standard for its fastidious owner, the car is described as in generally very good/excellent condition and offered with sundry restoration invoices and current MoT. We understand that a Swansea V5C registration document has been applied for.
Auction Source: 2010 Collectors’ Motor Cars at Goodwood Revival by Bonhams

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150 Roadster
– sold for $101,790
Mike Amalfitano began a restoration of this 1958 XK 150 Roadster (or “Open Two Seater” as it’s officially known by Jaguar) almost as soon as he bought it. As it progressed, however, so did its specifications. Chassis revisions including shocks, springs and radius arms for better handling also led to adopting smaller diameter highly polished wire wheels that could take advantage of more modern tires. An electric-powered power steering system was added for more enjoyable low speed driving.
Auction Source: Bonhams 2010 Exceptional Motorcars and Automobilia

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150 S 3.4 Roadster S831062DN
– sold for $159,500
This XK150S was bought by prolific Jaguar collectors Jerry and Kathy Nell in 1988 and treated to a frame-off restoration. It retains its original engine and was shown in 10 JNCA Concours d’Elegance between 1989 and 1992, scoring between 99.63 and 100 points. It is strikingly finished in dark maroon with black canvas top and black leather interior, as well as chrome wire wheels and wide whitewall tires.
Auction Source: RM Auctions’ 2010 Sports & Classics of Monterey

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK 150S 3.4 Roadster
– did not sell for $100,000

All told, 1,466 examples of the XK 150S were produced until 1961, of which less than 1,000 were Open Two Seaters. In fact, the Jaguar on offer is one of just 361 left-hand drive XK 150S cars assembled and, according to a previous owner, it was once owned by a former owner of the New York Daily News. The car was eventually acquired by Mr. Nicolas Juncadella of New York and Florida, a Ferrari, Porsche and Jaguar collector who noticed the car during the purchase of a farm he acquired in Stanfordville, New York.
Auction Source: 2009 RM Auctions Sports & Classics of Monterey

1957 Jaguar XK150 3.4 Roadster
1958 Jaguar XK150 S Roadster T831359DN
– did not sell for $104,500 
This XK150S was original finished in black and was officially manufactured on September 12, 1958, and exported to Jaguar Cars New York just over two weeks later. The car has been repainted Carmen Red and its original 3.4-liter engine was replaced with a 3.8-liter motor which debuted in the D-Type race car and became available in the XK150 towards the end of the model’s run. Show more.
Auction Source: Gooding & Company 2010 Amelia Island Auction

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK 150S 3.4 Roadster
– did not sell for $100,000
All told, 1,466 examples of the XK 150S were produced until 1961, of which less than 1,000 were Open Two Seaters. In fact, the Jaguar on offer is one of just 361 left-hand drive XK 150S cars assembled and, according to a previous owner, it was once owned by a former owner of the New York Daily News. The car was eventually acquired by Mr. Nicolas Juncadella of New York and Florida, a Ferrari, Porsche and Jaguar collector who noticed the car during the purchase of a farm he acquired in Stanfordville, New York.
Auction Source: 2009 RM Auctions Sports & Classics of Monterey

1957 Jaguar XK150 3.4 Roadster
1959 Jaguar XK150S Roadster
– sold for $113,300
All told, 1,466 examples of the XK 150S were produced until 1961, of which less than 1,000 were Open Two Seaters. In fact, the Jaguar on offer is one of just 361 left-hand drive XK 150S cars assembled and, according to the vendor, was previously owned by a former owner of the New York Daily News. It was eventually acquired by Mr. Nicolas Juncadella of New York and Florida; a Ferrari, Porsche and Jaguar collector who noticed the car during the purchase of a farm he acquired in Stanfordville, New York – and then insisted that it become part of the overall transaction.
Auction Source: 2009 Automobiles of Amelia Island RM Auction