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Top new models for SA

From Renault's new Alaskan bakkie to the latest models at the Frankfurt motor show bound for SA.

Electric cars in SA

The debate on whether or not Electric Vehicles (EV) are viable in South Africa rages on.

Audi TDI does 4l/100 km

2010-09-13 11:35

Audi calls it a "near-production" study, but this A4 packs a fuel-sipping 2.0-litre turbodiesel which the manufacturer claims is good for 3.99 l/100 km.

The technology concept shown at the Paris show is called the A4 TDI concept e.

The powertrain uses a direct injection TDI engine producing 88 kW and 290 Nm, giving the sedan a 0 - 100 km/h-time of 10.7 seconds and a top speed of 206 km/h.

According to Audi, this is possible while consuming under 4 l/100 km while emitting 105 g/km of CO2.

A host of details, including soft springs on the intake valves to a new heat management system, is said to improve the engine's efficiency. The fuel pump and the air conditioner's compressor have also been adapted.

This A4 is also equipped with a recuperation system that recovers energy that would have been lost when braking and temporarily stores it in a battery. A stop-start system switches the engine off when the car comes to a standstill.

Weight reduction techniques are also in place, including the use of magnesium to reduce the weight of the six-speed manual transmission with modified gear ratios.

Physically, the body has been altered to make it more aerodynamic with adjustments to the grille and underbody and a modified ride height.

Furthermore, the 17-inch tyres fitted to this A4 have a low rolling resistance and an electric brake system is used on the rear axle. 

While on the road, the driver is able to access a training programme to help him drive more economically or he can use the navigation system to calculate the most fuel efficient route.

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