The 1957 Pescara Grand Prix was an odd race to be featured in the Formula One championship. Only once did this traditional road course, with its enormous length of 25,6km /15,9 miles, host a Formula One race. This was due to the Belgian and Dutch Grands Prix being cancelled in short notice, meaning that a replacement had to be found to not leave too large of a gap in the 1957 race calendar. This would mark the first time two official Grands Prix were held in the same country during a single seas