A British couple plunged to their deaths after their Ferrari veered off a mountain road and went into a river. The pair were found dead by rescuers in the mangled wreckage of the vehicle near Boca de Huergano, northern Spain . The victims have only been identified by their ages, 78 and 58, at this time. The couple's black Ferrari 488 is a supercar worth £300,000. According to reports, they were travelling with a group of around 20 other Ferrari owners as part of rally. Their licence plates were