The Jaguar Mark 2 is a medium-sized saloon car built from late 1959 to 1967 by Jaguar in Coventry, England. The outmoded Jaguar 2.4 Litre and 3.4 Litre models made between 1955 and 1959 are identified as Mark 1 Jaguars.
The Mark 2 was a fast and capable saloon in line with Sir William Lyons' 1950s advertising slogan: Grace . . . Space . . . Pace.
Production of the 3.8 ended in the (northern) autumn of 1967. At the same time the smaller Mark 2 cars were replaced by run-out versions named 240 and 340 sold at reduced prices. The 340 was built until the new XJ6 was available in September 1968. The 240 remained available until April 1969.
The new car came with a 120 bhp (89 kW; 122 PS) 2,483 cubic centimetres (152 cu in), 210 bhp (157 kW; 213 PS) 3,442 cubic centimetres (210 cu in) or 220 bhp (164 kW; 223 PS) 3,781 cubic centimetres (231 cu in) Jaguar XK engine. The 3.8 is similar to the unit used in the 3.8 E-Type (called XKE in the USA), having the same block, crank, connecting rods and pistons but different inlet manifold and carburation (two SUs versus three on the E-Type in Europe) and therefore 30 bhp (22 kW) less. The head of the six-cylinder engine in the Mark 2 had curved ports compared to the straight ports of the E-Type configuration. The 3.4 Litre and 3.8 Litre cars were fitted with twin SU HD6 carburettors and the 2.4 Litre with twin Solex carburettors.
Aware of the importance of the quotable numbers to the US market Jaguar continued to use claimed gross bhp figures throughout the production period of the Mk II and 240/340 models. A direct conversion into DIN bhp is not possible, but the 3.8 Mk II engine developed about 190 bhp by modern DIN standards. This compares with the later 4.2 XJ6 engine which also gave around 190 bhp DIN, or 245 gross bhp according to Jaguar. The explanation was that the XJ6 4.2 engine was delivering the power at less rpm. The camshaft timing and inlet and exhaust valve sizes were the same for the 2.4,3.4,3.8 Mk II and XJ6 4.2 engines, so the engines throttled themselves sooner in the bigger engine sizes. Later 4.2 XJ6 engines had special induction pipes, to reduce exhaust emissions, that crossed over between the inlet and exhaust sides of the engine. These reduced bhp to around 170 bhp on later production.
The new car's appearance was transformed by an increase of 18% in cabin glass area greatly improving vision. It was re-engineered above the waistline. Slender front pillars allowed a wider windscreen, and the rear window almost wrapped around to the enlarged side windows, now with the familiar Jaguar D-shape above the back door and fully chromed frames for all the side windows. The radiator grille was changed and larger side, tail and fog lamps repositioned. Inside a new heating system was fitted and ducted to the rear compartment. There was an improved instrument layout that became standard for all Jaguar cars until the XJ series II of 1973.
The front suspension geometry was rearranged to raise the roll centre and the rear track widened. Four-wheel disc brakes were now standard. Power steering, overdrive or automatic transmissions could be fitted at extra cost. The 3.8 Litre was supplied fitted with a limited-slip differential.
The Mark 2 was over 100 kg heavier than the 2.4 / 3.4 cars.
The car continued to use a live axle at the rear.
A popular luxury derivative was fitted with Daimler's own 142 bhp (106 kW; 144 PS) 2½-litre V8. It sold well from 1962 to 1967 as a Daimler 2.5 V8. In late 1967, it was re-labelled V8-250 to match the Jaguar 240. As well as being significantly more powerful than the 2.4-litre XK6, the more modern Daimler engine was lighter by about 150 lb (68 kg) and shorter which reduced the mass over the front wheels and so reduced understeer during hard cornering.
These cars were recognisable by the characteristic Daimler wavy fluting incorporated in the chrome radiator grille and rear number plate lamp cover, their smoothness and the sound of their V8 engine. They were given distinctive exterior and luxury interior fittings.
Sometime on or about September 1967 the 2.4 litre and 3.4 litre Mark 2 cars were rebadged as the 240 and 340 respectively. However, there exists documentation of at least one Mark 2 car manufactured in May 1967 and rebadged as "340." According to Anders Ditlev Clausager, Jaguar Chief Archivist, in a letter dated 9 October 2009, he stated "...[t]he theory that some of these 1967 Mark II lite cars sold in the USA were rebadged here, to fall into line with the new model nomenclature introduced by Jaguar in late 1967." The 3.8 litre model was discontinued. The 240 and 340 were interim models intended to fill the gap until the introduction of the XJ6 in September 1968. The 340 was discontinued on the introduction of the XJ6 but the 240 continued as a budget priced model until April 1969; its price of £1364 was only £20 more than the first 2.4 in 1956.
Output of the 240 engine was increased from 120 bhp (89 kW; 122 PS) at 5,750 rpm. to 133 bhp (99 kW; 135 PS) at 5,500 rpm. and torque was increased. It now had a straight-port type cylinder head and twin HS6 SU carburettors with a new inlet manifold. The automatic transmission was upgraded to a Borg-Warner 35 dual drive range. Power steering by Marles Varamatic was now available on the 340. Servicing intervals were increased from 2,000 miles (3,200 km) to 3,000 miles (4,800 km). There was a slight reshaping of the rear body and slimmer bumpers and over-riders were fitted. For the first time the 2.4 litre model could exceed 100 mph, resulting in a slight sales resurgence.
The economies of the new 240 and 340 models came at a cost – the leather upholstery was replaced by Ambla leather-like material and tufted carpet was used on the floor—though both had been introduced on the Mark 2 a year earlier. Other changes included the replacement of the front fog lamps with circular vents and optional fog lamps for the UK market. The sales price was reduced to compete with the Rover 2000 TC.
Mark 2: 83,976 produced between 1959 and 1967, split as follows:
240 and 340: 7,246 produced between 1967 and 1969, split as follows:
The XJ6 was introduced in September 1968.
A 3.4 litre with automatic transmission tested by The Motor magazine in 1961 had a top speed of 119.9 mph (193.0 km/h) and could accelerate from 0-60 mph (97 km/h) in 11.9 seconds. A touring fuel consumption of 19.0 miles per imperial gallon (14.9 l/100 km; 15.8 mpg‑US) was recorded. The test car cost £1951 including taxes of £614.
A 3.8 litre with the 220 bhp engine was capable of accelerating from 0-60 mph (97 km/h) in 8.5 seconds and could reach a top speed of 125 mph (201 km/h).
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