Lotus Seven is the small sport open car for 2 persons. It was produced by Lotus from 1957 until 1972. After the end of the sales of the model Lotus had sold the rights for the model to Caterham Cars, the company that continued the production of the car under the name Caterham.
For the first time, Lotus Seven was presented to the public in 1957 as the cheapest sport car, intended for British club racings. The sales of the complex for assemble were available on the market from 1958. The cars of the first generation had the spatial frame, continuous-solid rear axle, independent front suspension on А-shaped levers, disk brakes for all wheels, 40 horsepower Ford 100Е engine and the 3-speed transmission. After it was installed the new 75 hp engine in combination with 4-speed transmission, the car could accelerate to 100 km / h during 9 sec. From the bad weather protected the windshield and light tent and removable soft doors.
In 1960 appeared the second generation of Lotus Seven. The frame was simplified and the suspension was modernized. The second series of this model had the light frame, new front wings and streamlined nosing made of fiberglass. For the first time the engines remained the same, but very soon they were changed by the modern Ford 105Е power units with the volume of 997 cc and BMC (from Austin Healey Sprite). From 1961 were installed 1340 cc Ford Classic 109Е engines and 1498 cc Ford Cortina from 1962.
In 1967 Caterham Cars became the exclusive distributer of Lotus Seven.
In 1968 appeared the 3d series of the car. From 1969 the car was equipped with Lotus engine with two camshafts with the volume of 1.6 L and the capacity of 115 hp. With the creation of the 3d series was solved the troubles of the previous models with rear axle and differential gear.
From 1969 till 1972 it was produced the unsuccessful 4th series. The design of which alienated the fans of the car, so all the rights were sold to Caterhem Cars, which continued the production of classical 3d series.