BMW Z4M car review - Top Gear - BBC

Richard Hammond takes on the scapel-sharp Porsche Boxster S with the mighty BMW Z4M around the Top Gear track. Top Gear YouTube channel: www.youtube.com TopGear.com website: www.topgear.com Top Gear Facebook Top Gear Twitter: twitter.com Click here for more BMW videos: bit.ly Click here for more Porsche videos: bit.ly

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