Opel Manta, Ford Capri, VW Scirocco and Honda CRX – the horsepower parade down the years is dotted with halfway manageable and affordable coupés that brought the spirit of real sports cars to the masses. Cars like this now seemed doomed to extinction amid ever tougher CO2 emission requirements from Brussels, the growing SUV trend and the electric car onslaught but it seems some are still alive and kicking. Toyota, of all companies, which pioneered petrol-electric hybrid drive, doesn’t appear ready to accept the coming of the post-combustion era. The second generation of the GR86 goes on sale i…