Renault Group sells Avtovaz

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  Audi’s new Digital Matrix LED headlights will revolutionise safety, greatly reduce fatigue and stress in driving at night and even be able to communicate with other drivers, according to the car maker. However, a number of  Audi 's more radical ideas - such as OLED tail-light clusters displaying warning symbols and the headlights projecting a variety of warning symbols onto the road surface - are held up by complex homologation laws across the globe. The most striking of the various new light technologies revealed at a technical presentation last week at the company’s Ingolstadt headquarters is already an option on the new  Audi A8 . Costing around €1800 (£1520) in Germany, the Digital Matrix Headlights (DMH) are based around a new Digital Micro Mirror device that houses 1.3 million micro-mirrors. These mirrors measure just a tenth of the width of a human hair and can be rapidly switched into two distinct positions.  Inside the headlight, the light f...
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Porsche GT4 E-Performance

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 Porsche has revealed the GT4 E-Performance, an EV race car that hints at what the all-electric next-generation Cayman will be like.

Based on the chassis of a Porsche Cayman GT4 RS Clubsport with parts from the Porsche 911 RSR GTE car, the GT4 E-Performance predates the previously revealed Porsche Mission R Concept but shares a number of components, including the electric motors and battery technology.

In full-blown qualifying mode, the GT4 E-Performance is capable of producing 1072bhp, with power delivered through a motor on each axle. However, power can be wound down to 603bhp to conserve charge for around 30 minutes - the length of a current Porsche Carrera Cup race.

A 900V fast-charging system allows the 82kWh batteries to be replenished by 75% in just 15 minutes, while a bespoke oil cooling system regulates the temperature and helps ensure that the car produces a consistent power output over time.

Due to the addition of the battery and electric motors, the car weighs around 1600kg - just over 200kg more than the combustion-powered 718 Cayman GT4 RS Clubsport racer.

Porsche says that the car is as fast as the current 992-generation 911 GT3 Cup, which indicates a top speed of around 180mph. The Mission R concept claimed a 0-62mph time of less than 2.5sec, and the E-Performance no doubt follows suit.

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