Noted for its striking design as well as a high;y regarded chassis and engine, the Renault Megane Renaultsport 250 will be the basis for a new N4 rally car, intended for racing on asphalt by private teams and drivers.
The new model draws on a heritage of Group N homologated Renaults stretching back more than 25 years: 5 GT Turbo, R11 Turbo, R21 Turbo, R19 16V, Clio Williams and Clio Renaultsport.
Intended to keep costs down, group N regulations impose strict rules on the modifications that can be made to the original car. This constraint works to the advantage of the Megane Renaultsport N4, which gets the benefit of the technology used on the production model.
The PerfoHub independent steering-axis front suspension design, for example, has allowed the engineers to put together a chassis that combines traction, directional stability and driving comfort in complete safety. The use of three-way adjustable Ohlins shock absorbers also allows the settings to be adapted to all driving styles.
Under the hood, the F4Rt 1998cc 16v turbo engine has been enhanced with an optimized ECU developed by Cosworth Electronics to enhance performance despite the regulation 33mm turbo restrictor. The N4's engine puts out 265hp from 4000rpm and 350 lb-ft of torque at 3000rpm.
The motor is linked to a five-speed H-pattern transmission, developed specifically for this purpose. It has a self-locking ZF-type limited slip differential and the final gear ratios can be adjusted according to the requirements of each event. The clutch system is supplied by AP Racing and the transmission is cooled by an oil radiator.
At the front, theMegane Renaultsport N4 is fitted with 355mm brake rotors and four-piston one-piece calipers. At the rear, the grooved rotors taken from the standard production model are fitted with double-piston fixed calipers. As required by racing regulations, the ABS is disabled. Inside the cabin, a limiter system allows the driver to control rear braking pressure. In accordance with the regulations, the master cylinder and pedal assembly are taken from the production model. Essential on hairpins, a vertical lever-operated hydraulic handbrake has been added to the standard braking system.
Visually, the only addition is the roof-mounted air intake. However, the N4 version also features an F1-style aerodynamic splitter integrated into the front bumper.
The central exhaust outlet and rear diffuser also emphasize its shared pedigree with the Megane Renaultsport.
Inside, there are Sabelt bucket seats and the dashboard features an LCD screen to provide all the essential information on how the engine is running, as well as a tripmaster and LEDs for optimized gear shifts.
The N4 Kit price is about $76,000.