They say that 'boys will always be boys', but the same applies to racers - active or former - who just need a minor spark to ignite their competitive spirit.
As former F1 rivals and current Monaco residents, Nico Rosberg and Felipe Maas know each other well. So when the former challenged the latter to a round of indoor karting, Massa was game.
Check out the video of what went down during the fierce electric shootout between the two die-hard racers.
