According to SpeedandMotion, this Ferrari Challenge Stradale run held in California on July 27th was the world’s largest, with approximately 21 owners showing up. Videos after the break.
After the jump you are going to see and hear these cars in action, but before we get to that we wanted to point out that within this pack there were examples in black, silver, yellow, TdF and Bugatti blue, as well as two different shades of Rosso.
[via Autoblog]