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World Debut at the 79th Geneva Motor Show 2009: Rinspeed iChange


The Swiss auto powerhouse Rinspeed presented, at the Geneva Motor Show 2009, the ‘iChange,’ the world’s first car whose body adapts to the number of passengers on board.

In seconds a streamlined one-seater sports car transforms into a comfortable car with ample room for three. The trick: At the push of a button the rear end of the teardrop-shaped car magically pops up.

The basic idea behind the “iChange”: The energy demand of a vehicle depends mostly on its weight, the type of engine it uses, and its aerodynamic properties. The engineering-services company Esoro has built an extremely lightweight car weighing in at only 1’050 kilograms. To power the car, the Swiss specialists chose an electric motor. The idea of the pop-up rear end was conceived to account for the sizeable effect aerodynamics play in fuel consumption.

The “iChange“ features an adaptive body. The sole driver is conveyed in a teardrop-shaped car that offers optimal aerodynamic properties and thus minimized energy consumption. If more than one person need to be transported the expanding rear provides room for two passengers.

The energy for the electric motor comes from lithium-ion batteries that are available in two different stack configurations for short- and long-distance driving. The electric motor of the “iChange“ produces 150kW, capable of propelling the car to a top speed of 220 km/h. The sprint from rest to 100 km/h takes just slightly over four seconds. This impressive performance is made possible with the help of a six-speed pre-selector gearbox from the Subaru WRX car. The gearbox and drive train are lubricated with eco-friendly lubricants from Motorex. Custom-made lightweight 17” and 18” forged wheels with aerodynamic shrouds are supplied by light-alloy wheel specialists AEZ. Pirelli P Zero tires in size 215/40-17 in front and size 245/40-18 in back provideoptimal grip.

The concept car has no doors. The entire electrically powered roof section of the car measuring just 1.03 meters in height tilts forward to allow passengers to board.

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Filed under: Luxury, Luxury Cars, Mens, NEW, Rinspeed iChange, Womens

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