Hammond is in the dunes of Abu Dhabi to drive a new six wheeled machine from Mercedes Benz – the G63 6x6. Originally developed for the Australian military, it's now available civilians - as long as you have over half a million dollars to spend! Clip taken from series 21 episode 4. Subscribe for more awesome Top Gear videos: www.youtube.com/subscription_center?add_user=Topgear Top Gear YouTube channel: www.youtube.com/topgear TopGear.com website: www.topgear.com Top Gear Facebook: www.facebook.com/topgear Top Gear Twitter: twitter.com/BBC_topgear This is a channel from BBC Worldwide who help fund new BBC programmes.