POWER, ENGINEs, SOUND.

Partner-Crash SUV vs Minicar.

Jeremy Clarkson, James May and Richard Hammond are given a tight budget to build their own police cars. Watch this video, part 1 of 2, as the boys creations are put to the test in a speed lap around the Top Gear test track. Great challenge clip from BBC motoring show Top Gear. Visit http://www.TopGear.com for all the latest news and car reviews.

Jeremy Clarkson challenges the Ariel Atom to prove more fun than a motorbike - with astounding results. The speed is unlike any car or motorcycle on the road today, Top Gear investigates!Watch more Top Gear from BBC Worldwide here:http://www.youtube.com/view_play_list?p=793CABDF042A9514

A chance to see a gloating Simon Cowell race around the Top Gear test track to finish at the top of the leader board. Brilliant celebrity interview and speed lap in full high quality on the BBC Top Gear YouTube channel. Visit http://www.topgear.com for all the latest news and car reviews.