BMW i8 vs BMW M4 | Top Gear

It's BMW's petrol-fuelled icon up against the exotic hybrid pioneer. Who'll win? Check out http://www.topgear.com for all the latest car news and features. Subscribe for more awesome Top Gear videos:    / subscription_c.  . Top Gear YouTube channel:    / topgear   TopGear.com website: http://www.topgear.com Top Gear Facebook:   / topgear   Top Gear Twitter:   / bbc_topgear   This is a commercial channel from BBC Studios. Service & Feedback https://www.bbcstudios.com/contact/co...