Renault provided the first glimpse of the concept car, DeZir, at the 2010 Paris Motor Show. DeZir stands out as an illustration of the brand's commitment to more emotional styling.
An electric beauty
DeZir is powered by an electric motor mounted in a mid-rear position to optimise weight distribution over the front and rear wheels. The 24kWh lithium-ion battery provides the car with a range of 100 miles.
Battery cooling is ensured not only by the air channelled from the front to the back of the car, but also – and above all – by the flow of air that enters through the lateral scoops concealed behind the aluminium panels on either side of the body.
The basic motor is the same as the unit used for Renault's production electric cars, although an evolution has enabled its power and torque to be uprated to 110kW (150ch) and 226Nm respectively.
In order to optimise range and dynamic performance, Renault Design's technical teams have kept DeZir’s weight to a minimum: its body is made from Kevlar, while its tubular steel frame is similar to that employed for the Mégane Trophy race car.
DeZir’s aerodynamics have been carefully honed, too, thanks to full underbody fairing and a rear diffuser. The result of this work is a drag coefficient (Cd) of 0.25, as well as outstanding acceleration, with DeZir capable of accelerating from rest to 62mph in just five seconds.
DeZir’s energy efficiency package also includes the recovery of deceleration energy. The technology it employs is based on the same principles as the KERS (Kinetic Energy Recovery System) seen in Formula 1. When the car decelerates, kinetic energy is recovered and stored in the battery. In the case of DeZir, this energy can then be employed by the driver to provide a temporary power boost at the moment he or she chooses, using a button located on the steering wheel.
Driving pleasure is further enhanced by the design of the driver interface. The dashboard visually mirrors the sensations felt at the wheel by means of a graphic display of data received from the accelerometer and speed sensors.