Allan McNish explains how F1 teams get extra speed in Italy

Three-time Le Mans winner Allan McNish explains how aerodynamic changes allow F1 teams to gain higher top speeds at the Italian Grand Prix.

Monza, which is set to host a record 65th grand prix this weekend, is known as the 'cathedral of speed' and remains the fastest circuit on the F1 calendar.

The Italian Grand Prix is live on Radio 5 live, with highlights across BBC TV and online.

Available to UK users only.