It is likely that an oil slick dropped by Mieres' Porsche caused a tragic accident at the 1958 Cuban Grand Prix, in which at least four people were killed and fifty more injured.
É probable que unha mancha de aceite deixada polo Porsche de Mieres provocara o tráxico accidente do Gran Premio de Cuba de 1958, no que polo menos morreron catro persoas e outras cincuenta resultaron feridas.