2005-12-10 12:57:05 | Christian J. Jenny writes:

Very originial Alloy XK120. In excellent conditions, regularly used, superb driver.

2005-12-10 19:44:14 | Peter Ingram writes:

Do you still own 670123?? It was sold at pebble Beach in 2005

2017-10-13 20:25:45 | pauls writes:

Car now offered at;
www.classicandsportscar.com/classifieds/classic-cars/jaguar/xk120/1950-jaguar-xk ...

Sellers description:
For sale from Classic Showcase, in California, United States
POA
1950 Jaguar XK-120 3.4 Alloy Roadster
Stock: J50-121
Current condition: SHOW
Performance: 3.4 litre inline six-cylinder engine, Twin SU Carbs, 160 HP at 5,200 RPM
Transmission: 4-Speed Manual
Suspension: Independent front torsion bar and rear leaf spring
Color exterior: Old English White
Color interior: Two-Tone Red & Beige / Fawn Top
Wheels: Steel Disc Wheels
Brakes: Hydraulic Drum Brakes
Vin #: 670121
Engine #: W1193-8
Gearbox #: R11458

Classic Showcase is pleased to offer one of the rarest classic Jaguars available in the world today, the Alloy-bodied XK-120 Roadster. The car offered here, chassis number 670121, is one of the hundred eighty-four delivered with left-hand drive, out of a total of 242 Alloy-bodied cars produced. A nice example of the rarest of all early patterned Aluminum bodied cars with steel disc wheels, and distinctive rear mudguard spats. This example stands as a wonderful example of the archetypal and most desirable of the Alloy-bodies series of cars, and presents the Jaguar collector with a rarely afforded opportunity to own a coveted piece of Jaguar motor history.

2018-02-18 16:55:40 | pauls writes:

Direct URL for Classic Showcase:
classicshowcase.com/index.php/inventory/detail/57

2019-05-26 11:34:57 | pauls writes:

Car to be at auction 8/19

rmsothebys.com/en/auctions/mo19/monterey/lots/r0040-1950-jaguar-xk-120-alloy-roa ...

1950 Jaguar XK 120 Alloy Roadster

Offered without reserveRM | Sotheby's - MONTEREY 15 - 17 AUGUST 2019

Lot 233

Body No. F 1163

Chassis No. 670121

Engine No. W 1193-8

Gearbox No.JH 1458

One of 184 left-hand-drive alloy roadsters built

Presented in highly attractive period-correct color scheme

Retains its matching-numbers engine and gearbox

In all, 7,631 XK 120 roadsters were built from 1949–1954, and 2,678 coupes between 1951 and 1954. The weather-tight drophead coupe arrived last, with 1,769 produced in 1953 and 1954. Of the roadsters, only the earliest 242 examples were bodied in aluminum, and these earliest XK 120s are considered some of the most desirable examples, especially the 184 left-hand-drive versions, such as the example offered here.

According to the Jaguar Heritage Trust Certificate, this alloy-bodied XK 120 was completed on 6 February 1950 and delivered to the famed New York dealership of Max Hoffman on 23 March 1950. The Jaguar was finished in Pastel Blue paint over a two-tone blue interior with a Fawn top. Though its earliest history is unknown, it is believed to have spent most of its life in the western United States. The body and ash framework are said to be in original condition, with the current paint having been applied sometime in the 1970s. The JDHT certificate also confirms that the car is still fitted with its matching-numbers engine and gearbox.

A proper alloy XK 120 is a must-own in any serious sports car collection, and this is a fine example of the Earls Court sensation.

2019-09-26 15:04:24 | Anonymous writes:

1950 Jaguar XK 120 Alloy Roadster

VIN: 670121

This 1950 Jaguar XK 120 Alloy Roadster was last sold at the RM Sotheby's Monterey (2019) classic car auction on Aug 16, 2019 $207,200 US

2021-03-30 11:48:49 | pauls writes:

Car is back at Classic showcase:

classicshowcase.com/index.php/inventory/detail/640

2022-08-12 10:11:14 | pauls writes:

Car returns to auction 8/22

www.broadarrowauctions.com/vehicles/jc22_019/1950-jaguar-xk120-alloy-roadster

Auction description:

Broad Arrow Auctions Monterey Jet Center Auction this 18 August in Monterey, California

One of only 242 alloy bodied cars constructed

World's fastest production car upon debut in 1949

Numbers matching 3.4 L DOHC inline six-cylinder engine

Includes a Jaguar Heritage Trust Certificate documenting original build details

Chassis No. 670121

Engine No. W 1193-8

According to the Jaguar Daimler Heritage Trust, this XK120 was the 121st alloy car produced, with a build date of 6 February 1950. It was shipped in left hand drive configuration to the Max Hoffman Company in New York, 23 March 1950, only eight months after the first XK120 landed in the United States. Rear-wheel spats, slim front bumpers with guards, and steel disc wheels accentuate its graceful, sweeping contours that feature a narrow 13 bar grill and faired Lucas PF770 tri bar headlights. The aircraft type, fully instrumented dash containing a 140 mph Smiths speedometer made quite the statement in 1950.

This alloy-bodied XK120 with its numbers matching engine resided for a number of years in a prominent Swiss collection where it was campaigned on a number of tours and rally events before returning to the United States where it passed through two more esteemed and significant collections in Southern California. Touring events continued stateside with completion of the prestigious Colorado Grand. Originally Pastel Blue with Duo Blue seating, chassis number 670121 was refinished in Jaguar Old English White over a Red / Beige leather interior. The body wears the period appropriate livery combination so well that this Jaguar appears more like a patinated, preservation class XK120 than an older restoration. It is completed with side curtains, an Operator's Handbook, tool roll, jack, tire pump, spat key, grease gun and a Jaguar Heritage Trust Certificate confirming original build details.

2025-02-20 18:15:41 | pauls writes:

Car is back at Classic showcase:

classicshowcase.com/index.php/inventory/detail/640

Classic Showcase is pleased to offer one of the rarest classic Jaguars available in the world today, the Alloy-bodied XK-120 Roadster. Jaguar created these Alloy-bodied models with the aim of competition racing, where its lightweight aluminum body design would prove to be a great performer on the track; this unique, performance-minded design aesthetic produced a special series of 240 Alloy XK-120s, including the example on offer here. The numbers-matching car offered here (chassis number 670121), is one of the 184 left-hand drive models that Jaguar delivered, out of a total of 242 Alloy-bodied cars produced , and offers all of the notable early XK-120 features, while showing a great level of patina throughout; in addition, this Alloy has a number of truly unique special features present that are exclusive to 1949 & 1950 Alloy roadster builds, including chromed top bows, chromed prop rod, along with a pair of chromed seat bottoms and bases (which were subsequently changed to painted steel in 1951 to keep production costs down). In addition, the Alloy 120 also features a set of taller SU carburetors which were also exclusive to early XK and 120 models. A nice example of the rarest of all early patterned Aluminum bodied cars with steel disc wheels, and distinctive rear mudguard spats.

This XK-120 has a great history, as it was owned by a very well-known Jaguar collector, a doctor in Switzerland. He campaigned and enjoyed the car in rallies and shows all over Europe, and after years of ownership decided to let another collector take ownership. The car was eventually brought to the United States, where it was later purchased by Classic Showcase. Later, we sold the Alloy to a prominent Southern California collector who enjoyed the car for a number of years, including participating in the famous annual Colorado Grand rally, an incredible achievement for a car of this age and stature! He continued to enjoy the Alloy for several more years, until Classic Showcase reacquired the car and performed a thorough servicing and update; Now, this rare and collectible XK-120 Alloy example is ready for the next chapter of its special life...

This XK-120 roadster stands as a wonderful example of the archetypal and most desirable of the Alloy-bodies series of cars and presents the Jaguar collector with a rarely afforded opportunity to own a coveted piece of Jaguar motor history. The Alloy roadster comes complete with a Jaguar Daimler Heritage Certificate of Authenticity, tool roll, jack, and owner’s manual.

2025-12-24 07:04:37 | pauls writes:

Additional description of 670121 from Classic Showcase where it is being restored:

classicshowcase.com/newsletter/winter2025/Useful-Information.html

In 2025, Alloy-bodied XK-120s are valued not just for their rarity, but also for their significance. They mark the moment when the Jaguar brand stepped confidently onto the world stage, introducing the engines, lines, and performance philosophy that would define the brand for decades. 

A small number of these early roadsters survive in authentic condition, and each one serves as a living piece of Jaguar history. The 1950 Alloy XK-120 now being restored in our shop is one such example. Its presence reminds us of the artistry and innovation that shaped the earliest days of Jaguar’s postwar revival. Among knowledgeable collectors, Alloy-bodied XK-120s are considered foundational pieces. They stand at the intersection of rarity, craftsmanship, and historical importance. Their connection to motorsport, their hand-built construction, and their role in Jaguar’s evolution make them one of the most desirable sports cars of their era. For collectors who admire the origins of British performance design, the Alloy XK-120 offers something few cars can match. It is both a milestone and a masterpiece, a reminder of what can happen when engineering necessity and artistic vision meet at exactly the right moment!

Chassis number 670121 is a numbers-matching example that retains several ultra-rare features exclusive to Alloy-bodied cars from 1949 and 1950. These include chromed top bows, a chromed prop rod, and chromed seat bottoms and bases, all of which were later replaced with painted steel to reduce production costs. The roadster still wears its distinctive taller SU carburetors and its steel disc wheels with rear spats, all features of the earliest cars. This XK-120 has led a distinguished life. It was long owned by a respected Jaguar enthusiast in Switzerland who participated in rallies and European motoring events. The car then made its way to the United States, where a prominent Southern California collector acquired it and later drove it in the Colorado Grand. Completing the Colorado Grand is a significant accomplishment for any vintage car, and especially meaningful for one of this age, rarity, and construction. Classic Showcase later reacquired the XK-120 and performed an extensive servicing and update to prepare it for the next chapter of its life.

2025-12-24 11:53:23 | Anonymous writes:

While there is little doubt this car is an original, IMHO both the ID and Body tag are re-stamps.

2026-02-11 06:29:13 | pauls writes:

Car now offered in Hemmings:

www.hemmings.com/classifieds/dealer/jaguar/xk120/2308425.html

Seller's description:

1950 Jaguar XK120 Alloy Roadster

Seller Classic Showcase, Inc.

Vehicle Location Oceanside, California 92056

Condition Excellent

VIN # 670121

Mileage 64,357

Transmission Manual

Body Style Alloy Roadster

Exterior Color Pastel Blue

Interior Duo-Blue with Fawn Top

February 2026 Update: We are in the final stages of the restoration to this Alloy Roadster and are in the process of sorting and test driving the Jaguar - stay tuned for more updates! Our team began a comprehensive cosmetic restoration of this rare Alloy-bodied XK-120 Roadster, where it's restoration focused on the body, interior, and bright work, as the 120’s original mechanical components were found to be in great condition and are being preserved and were serviced accordingly. Special attention was paid to such a historical example of rarity, so we invite you to stay tuned as we bring this special Alloy Jaguar to a fresh show-level standard!

Classic Showcase is offering one of the rarest classic Jaguars available in the world today, the Alloy-bodied XK-120 Roadster. Jaguar created these Alloy-bodied models with the aim of competition racing, where its lightweight aluminum body design would prove to be a great performer on the track; this unique, performance-minded design aesthetic produced a special series of 240 Alloy XK-120s, including the example on offer here. The numbers-matching car offered here (chassis number 670121), is one of the 184 left-hand drive models that Jaguar delivered, out of a total of 242 Alloy-bodied cars produced , and offers all of the notable early XK-120 features, while showing a great level of patina throughout; in addition, this Alloy has a number of truly unique special features present that are exclusive to 1949 & 1950 Alloy roadster builds, including chromed top bows, chromed prop rod, along with a pair of chromed seat bottoms and bases (which were subsequently changed to painted steel in 1951 to keep production costs down). In addition, the Alloy 120 also features a set of taller SU carburetors which were also exclusive to early XK and 120 models. A nice example of the rarest of all early patterned Aluminum bodied cars with steel disc wheels, and distinctive rear mudguard spats.

This XK-120 has a great history, as it was owned by a very well-known Jaguar collector, a doctor in Switzerland. He campaigned and enjoyed the car in rallies and shows all over Europe, and after years of ownership decided to let another collector take ownership. The car was eventually brought to the United States, where it was later purchased by Classic Showcase. Later, we sold the Alloy to a prominent Southern California collector who enjoyed the car for a number of years, including participating in the famous annual Colorado Grand rally, an incredible achievement for a car of this age and stature! He continued to enjoy the Alloy for several more years, until Classic Showcase reacquired the car and performed a thorough servicing and update; Now, this rare and collectible XK-120 Alloy example is ready for the next chapter of its special life...

This XK-120 roadster stands as a wonderful example of the archetypal and most desirable of the Alloy-bodies series of cars and presents the Jaguar collector with a rarely afforded opportunity to own a coveted piece of Jaguar motor history. The Alloy roadster comes complete with a Jaguar Daimler Heritage Certificate of Authenticity, tool roll, jack, and owner’s manual.