Jaguar Mark X
The widest and most imposing of the classic Jaguar saloons.
- Power
- 265 bhp
- 0–60 mph
- 9.9 s
- Top speed
- 122 mph
- Est. value
- $13k–$45k
About the Jaguar Mark X
Introduced in 1961 and updated with the 4.2-litre engine in 1964, the Mark X was Jaguar's flagship saloon, designed primarily to capture the American luxury market. It was a technological tour de force for its era, featuring the independent rear suspension from the E-Type and a sophisticated monocoque chassis. Despite its massive proportions—it remains one of the widest Jaguars ever built—it offered surprisingly agile handling and a top speed of over 120 mph. The interior is a masterclass in British luxury, featuring extensive walnut veneers and fold-out picnic tables for rear passengers.
Jaguar Mark X specs
The Jaguar Mark X produces 265 bhp (198 kW) and 384 Nm (283 lb-ft) of torque. It reaches 60 mph in 9.9 seconds and has a top speed of 122 mph (196 km/h).
| Make | Jaguar |
|---|---|
| Model | Mark X |
| Trim | 4.2 |
| Years | 1964–1966 |
| Type | Classic |
| Body style | Saloon |
| Country | United Kingdom |
| Production | About 5,137 built |
| Original price | About $7,000 when new |
| Engine | 4.2-litre inline-six |
|---|---|
| Displacement | 4,235 cc (4.2 litres) |
| Induction | Naturally aspirated |
| Power | 265 bhp (198 kW) at 5,400 rpm |
| Torque | 384 Nm (283 lb-ft) |
| Redline | 5,500 rpm |
| 0–60 mph | 9.9 s |
| Top speed | 122 mph (196 km/h) |
| Transmission | 4-speed manual with overdrive |
| Drivetrain | Rear-wheel drive |
| Weight | 1,900 kg (4,189 lb) |
| Power-to-weight | 139 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is a Jaguar Mark X worth?
A typical Jaguar Mark X is estimated to be worth $13,000 – $45,000 (about £9,300 – £34,000).
Its original price when new was about $7,000.
Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. Pound figures use the exchange rate of 3 November 2026. How values are estimated
Jaguar Mark X rarity in CarSpot
The Jaguar Mark X is a Rare card in CarSpot, with a rarity score of 50 out of 100. Performance cars, typically worth around £50,000 to £100,000. A Rare card is worth 40 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Jaguar Mark X fun facts
- The Mark X was the widest British production car of its time, a record it held until the arrival of the Jaguar XJ220 supercar in 1992.
- Its floorpan was so robust and well-engineered that it served as the basis for the Daimler DS420 limousine, which remained in production until 1992.
- The 4.2-litre variant is the rarest of the Mark X series, with only 5,137 units produced before it was rebadged as the 420G in 1966.
