In 1970 Lamborghini designed the Islero to meet the demand of the American market. When it came time to replace it, instead of just redesigning the Islero, Lamborghini instead made the Jarama, filling the spot which would have been taken by a second generation of the Islero. Introduced in 1970 at the Geneva Motor Show, Lamborghini built the Jarama to meet U.S. standards using a version of the Espada chassis that had had its wheelbase shortened by 10.7 inches. The Iso Lele and the Lamborghini Jarama share similarities in their exterior styling and were both styled by Marcello Gandini. A total of 328 Jaramas were built. The Jarama weighed dry, heavier than the Islero. It is powered by the same 3.9 L Lamborghini V12 engine used in the Islero and Espada, which was heavily derived from the engine used in the earlier 400 GT. The engine was fitted with six Weber 40 DCOE carburetors and sent power to the rear wheels through a 5-speed manual transmission. The original Jarama model was claimed to produce. Early Jaramas featured center-lockingmagnesium alloy wheels, as used on the Miura and S1/S2 Espadas.
Jarama S
The Jarama S was introduced in 1972. The exhaust system, heads and carburetors were revised, resulting in a power increase to. The S featured a few minor body modifications including a hood scoop, exhaust vents in the fenders, windshield position adjustments and relocated turn signals. New wheels on 5-bolt hubs were used, identical to those used on the Series 3 Espada. The interior now had redesigned dashboard trimmed in aluminium, switches relocated to the center console, added head/sound insulation and improved rear seats and legroom. Power assisted steering became standard early into Jarama S production. Removable roof panels, and a Chrysler TorqueFliteautomatic transmission were also available as factory options. Lamborghini built 150 of this version. Ferruccio Lamborghini's personal Jarama S is on display at the official Lamborghini museum at the company's factory in Sant'Agata Bolognese, Italy. The Jarama was Mr. Lamborghini's favorite model. He stated in a 1991 interview "I preferred the Jarama to all the others, because it is the perfect compromise between the Miura and the Espada."
Jarama Rally
The Jarama Rally, also known as the Jarama "Bob", is a one-off, race modified Jarama built by Lamborghini's test driverBob Wallace. It features a modified 3.9-liter V12 engine that was repositioned to sit farther back in the engine bay. This allowed it to achieve a nearly 50/50 weight distribution. The engine produces at 8,000 rpm, more than stock, and could reportedly reach a top speed of 270 km/h and accelerate from 0 to 100 km/h in about 5 seconds. As a race-ready example, Bob Wallace built the car from a bare shell, re-welding it where needed for stiffness and fitting a lightweight steel rear roll cage. He also upgraded the Jarama with a heavily modified aluminum body, which got rid of, amongst other things, the Jarama's hinged headlights and plastic discs, allowing the car to be around lighter than stock at an estimated. It also featured center locking Miura wheels and low back seats, Koni racing shock absorbers, and a stripped out interior. The orange and black painted vehicle never ended up participating in any races. The car was reportedly restored in the UK in 1990 after being discovered in Saudi Arabia.