The New Renault Clio Renaultsport 197 | Part Four

F1 aerodynamics

With two consecutive wins in the first two races of the 2006 FIA Formula One World Championship, Renault F1 Team is off to a flying start of its title defence giving a perfect demonstration of Renault’s engine and technology expertise.

Now some of that knowledge has been translated into the New Clio Renaultsport 197 with the groundbreaking air diffuser incorporated into the rear bumper - never before seen in this segment - which is derived from Formula 1 aerodynamics.

The rear air diffuser not only makes a striking visual impact but also a technological one on the car’s stability.

Previously only seen on range-topping high-priced sports cars, the New Clio Renaultsport 197’s air diffuser reduces rear-end lift and maintains stability at high speeds by channelling air flow to increase the suction effect, almost like gluing the car to the road. The radius of the diffuser’s curve is engineered to create a zone of low pressure beneath the car which adds to the suction of the car to the ground.

For optimal stability, the system reduces lift by a factor of three and produces the equivalent of up to 40kg of rear downforce without detracting from the car’s carefully honed aerodynamics which are designed to achieve a low CdA. This means that the rear air diffuser generates such downforce that it eliminates the need for a rear spoiler which would normally counter the lift.

Even the location of the twin exhausts is critical to the car’s performance showing the thought that has gone into the car. The flush-fitted dual exhausts are housed within the outer channels of the diffuser so as not to interfere with the aerodynamics and to maximise its effectiveness.

The front of the car’s dynamic and sporty looks are enhanced by the Renaultsport extended front wings with integrated side air extractors, which also come as standard on the New Clio Renaultsport 197 as does extended rear wings and sills.

As well as adding to the car’s striking exterior, the front wing extractors also have an aerodynamic function reducing turbulence to optimise the car’s drag co-efficient. The hot air and flow from under the bonnet of the car is facilitated by the extractor vents, whilst also directing air flow along the sides of the car at the same time, enhancing performance even further helping ensure New Clio Renaultsport 197’s best in class power and 0-62mph figure.

Derived from that of Mégane Renaultsport 225, New Clio Renaultsport 197's braking system ensures effective, durable stopping power, plus progressive, easy-to-dose pedal travel. The system comprises 312mm-diameter ventilated front discs with Brembo four-pot callipers and 300mm diameter discs at the rear.

Exclusive pre-ordering opens Monday 8th May 2006

The hotly anticipated New Clio Renaultsport 197 is available to order from Monday 8th May exclusively for registered members of www.renaultsport.co.uk.

Ordering opens for all on 30th May.

Hitting UK showrooms from 18th July, New Clio Renaultsport 197 looks set to join Renault’s long established list of hot hatch legends from the 5 Gordini, 5 GT Turbo, Clio Williams to the Clio Renaultsport 172 and 182.

Published 7 May 2006 Melanie Carter

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