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Renault Formula E racer (2013) at Frankfurt motor show

Formula E, the new elite racing series for electric single-seaters, has got the FIA’s backing, confirmed the major cities that will host the races, and now we've finally seen the crucial racecar. This is the Spark-Renault SRT_01E, a joint project developed between Renaultsport and Spark Racing Technology (SRT) which has just been unveiled at the 2013 Frankfurt motor show. There’s also been input from F1 legends Williams and McLaren, plus Dallara (which builds all the cars for the IndyCar series in the US).

Ivan 'Ironman' Stewart shifts gears, sells his stuff

Ivan “Ironman” Stewart’s high-speed lifestyle of flying through the desert, leaving a rooster tail of dust, is taking a turn down a calmer, gentler road. Stewart, 64, is ready to slow things down and create more time for himself and his family. “I’m not retiring,” he insists, “just changing directions.” Last weekend he sold his off-road racing truck business and everything that goes along with it.

Ecotricity Nemesis: The UK Tesla

The Ecotricity Nemesis - a British Tesla Dale Vince has built Ecotricity – an environmentally-friendly electricity generating company – from nothing to an annual investment of £25 million in wind energy. Which casual readers here would think we would find appalling. But far from it; we think it’s admirable.