Renault is paying tribute to one of the most cherished small cars of all time, the R5, and on the occasion of its 50th birthday, the French manufacturer is reviving the turbo version of their bestseller. Set to be unveiled as an electric concept car at the Paris Motor Show in October, the rebooted R5 is bridging the gap until the real R5 celebrates its comeback as an everyday electric runabout. Until that production car arrives with a more moderate design and a more modest drive, the new R5 Turbo concept is our closest look yet at this 1980s throwback. Just like the original sport hatchback, w…