Read more: http://www.autoexpress.co.uk/ferrari/62979/ferrari-laferrari-revealed<br />and http://www.autoexpress.co.uk/mclaren/p1/62870/mclaren-p1-revealed<br /><br />Ferrari and McLaren both used the Geneva Motor Show to reveal all-new supercars: but how do the Ferrari LaFerrari and McLaren P1 compare? Mat Watson finds out...<br /><br />Subscribe to Auto Express magazine and get 6 issues for £1 plus a free gift: http://subscribe.autoexpress.co.uk/yt
