Lex: Green sports cars

Ferrari, known for its high-performance red sports cars, formally joined the car industry's move toward electrification when it unveiled its first hybrid car, a "concept" model painted bright green. Ferrari said that the technology of its HY-KERS experimental vehicle, based on the regenerative braking system developed for its Formula One cars, could reduce its cars' emissions by 35 per cent. The brand, owned by Fiat, said it planned to begin introducing hybrid versions of all of its road cars within three to four years. Luke Templeman looks at the reasons behing speedsters going green.