Jaguar priced the 420 about 200 pounds above the S-Type it was based on, and buyers simply stopped choosing the S-Type.
Median 97 hp across 226 similar cars
Lead trim: 420 4.2 XK twin-carb six (245 bhp)
Jaguar 420 and Daimler Sovereign1966–1968
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Nobody in Burbles has spotted a Jaguar 420 and Daimler Sovereign yet. See one on the street, point the app at it, and the first card is yours — with your @handle permanently credited on this page.
FactJaguar priced the 420 about 200 pounds above the S-Type it was based on, and buyers simply stopped choosing the S-Type.
The Jaguar 420 ("four-twenty") and its Daimler Sovereign equivalent were introduced at the October 1966 London Motor Show and produced for two years (the Sovereign until 1969) as the ultimate expression of the series of compact sporting saloons Jaguar offered through the decade, all sharing the same wheelbase. Developed from the S-Type, it cost about £200 more and effectively ended buyer interest in the S-Type, though the S-Type was sold alongside the 420/Sovereign until both were supplanted by the XJ6 late in 1968. Lyons initiated development of a new saloon based on the S-Type, retaining its 54-inch independent rear suspension but adding a twin-carburettor 4.2-litre engine and frontal styling more akin to the Mark X. The 4.2-litre XK six had the straight-port cylinder head and 3/8-inch lift cams, and with two carburettors developed a claimed 245 bhp gross at 5,500 rpm, 20 bhp less than the triple-carburettor engine in the 420G and E-Type; the 245 bhp is on the US SAE gross system, so the net figure lay somewhere between 180 and 245 bhp. Transmission was a 4-speed manual (Jaguar only), a 4-speed manual with overdrive or a 3-speed Borg-Warner 35 automatic. A Motor road test in May 1967 called it, for a combination of speed, comfort and safety, as good as any in the world regardless of cost.
Collectors Spotted in the Jaguar 420 Lineage
No member has published a public street spot of the Jaguar 420 yet — the First · Worldwide stamp is wide open.
Trims & Figures
One published trim in the catalogue. A blank is a figure not recorded, not zero.
| Trim | Years | Engine | Power | Torque | 0–60 | Drive | Gearbox | MSRP |
|---|---|---|---|---|---|---|---|---|
| 420 4.2 XK twin-carb six (245 bhp) | 1966–1968 | 4.2 L Inline-6 | 245 hp | 283 lb-ft | — | RWD | — | — |
Owning one
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Owners’ builds
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Photographs
Rivals
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