2005 Caterham Seven CSR 260 Pictures, Specifications, Information

In late 2004, Caterham Cars proudly unveiled the most important all-new version of its legendary Seven sportscar to date.

The British built Caterham Seven CSR represents the long-awaited return of Cosworth to the road car market after a ten-year absence with two bespoke, high performance engines. The new model also benefits from the introduction of a fully independent rear, and inboard F1-style, front suspension plus major aerodynamic and chassis enhancements. Internally, the famous two-seater will boast the most dramatic overhaul of its dashboard and trim in the model’s entire 48-year history.

Engine

The heartbeat of the Seven CSR will be the new Cosworth developed 2.3-litre Ford Duratec engine.

The all-alloy, four-cylinder twin cam unit will produces 260bhp in the most powerful version and unrivalled levels of reliability and performance. Significantly, the EU4 approved 200bhp engine, will provide a major boost to Caterham’s already strong export market, as well as forming the cornerstone of its domestic high performance sales.

Suspension

With constant evolution, Colin Chapman’s timeless design has consistently proven to be the benchmark for handling and driver enjoyment. From this already enviable reputation, the Seven CSR pushes the envelope further still with an entirely redesigned new suspension system.

Developed in association with world leading specialists, Multimatic Inc, the new model benefits from a racetrack honed double wishbone fully independent rear suspension to increase grip and adjustability. At the front, an F1-style push-rod operated inboard unit improves the aerodynamic performance with an 50mm increase in the front wheel track aiding high-speed cornering for those venturing on circuit.

Chassis

The new suspension system, which required adjustments to the chassis, paved the way for Caterham to revise the Sevens tubular spaceframe. The resulting overhaul saw a 25 percent increase in torsional stiffness.

Interior

Internally, the new Seven CSR is barely recognisable from previous models.

To improve driver ergonomics, the traditional flat mounted toggle switchgear was completely dispensed with, replaced by a driver focused curved fascia wrapped around an exposed steel tubular framework. Alloy style dials, gear-knob, handbrake and a bespoke steering wheel complete the stylish new interior, with room created for storage space in the central console and in the armrest.

Aerodynamics

Aerodynamic improvements have majored on the face of the famous Seven.

The introduction of re-profiled cycle wings, which are mounted even closer to the tyre to cut drag, and a new larger nose cone complete with a floor mounted chin, have combined to reduce the front end lift by 50 percent. The net effect for the driver is a major decrease in high-speed understeer.

With one eye on the heat and humidity of some overseas markets, the new broader nose cone houses a larger radiator, and an underside intake and top positioned outlet duct to improve airflow management.

Wheels and Tires

Working in conjunction with long-standing partner, Avon, the Caterham Seven CSR squats firmly on Formula Three engineered 15-inch tyres, which measure a muscular 10 inches wide at the rear to assist traction and handling. Bespoke 15 spoke lightweight aluminium wheels will be fitted as standard.