Bugatti has done it - the 300mph barrier has been smashed!Racing driver legend Andy Wallace has taken a modified Bugatti Chiron up to 304.77mph, or for you metric folks, 490kph. So how did Bugatti do it? Mike breaks down the factors that have taken the Chiron to over 300mph.Follow us:https://twitter.com/drivetribehttps://facebook.com/drivetribeCheck out our store:https://store.drivetribe.com/Subscribe to the DRIVETRIBE YouTube channel: http://bit.ly/D_TRBsubs