Watch: Lewis Hamilton and Nico Rosberg launch the Mercedes W07
Monday 22 February 2016 11:35, UK
F1 world champions Mercedes have officially launched their 2016 car, the W07.
Lewis Hamilton and Nico Rosberg took the wraps off the new Mercedes in the Barcelona paddock ahead of the start of F1 pre-season testing.
Mercedes have won 32 of the last 38 races but are expecting a close fight from Ferrari for the world championship this year.
