I think the Ford Focus is a different car over your side of the Atlantic, here it's a bit of a boy racer car. The boy racers soup them up anyway. This will be why the Focus was chosen for the demo, a lot of them end up wrapped around trees and walls. The car is small and fast, the drivers often can't match it in performance.
From Wiki
In 2005 came the Ford Focus ST with a top speed of 152mph and 225bhp it was the fastest hot hatch of the time until 2009 with the release of the second RS model with 162mph and 300bhp it was one never to beat, until the launch of the Ford Focus RS500 in 2011, which had a top speed of 163mph and 350bhp.
They are popular as police cars, as rally cars and racing cars because of their speed.