Ferrari's decision to continue racing in the Mille Miglia brought the company new victories and greatly increased public recognition. However, increasing speeds, poor roads, and nonexistent crowd protection eventually spelled disaster for both the race and Ferrari. During the 1957 Mille Miglia, near the town of Guidizzolo, a 4.0-litre Ferrari 335 S driven by Alfonso de Portago was traveling at 250 km/h when it blew a tyre and crashed into the roadside crowd, killing de Portago, his co-driver and nine spectators, five of whom were children. In response, Enzo Ferrari and Englebert, the tyre manufacturer, were charged with manslaughter in a lengthy criminal prosecution that was finally dismissed in 1961.
Deeply unsatisfied with the way motorsports were covered in the Italian press, in 1961 Ferrari supported Bologna-based publisher Luciano Conti's decision to start a new publication, Autosprint. Ferrari himself regularly contributed to the magazine for a few years.