 Complete the following phrase:  Whitmarsh wanted Button to remain at McLaren for the next three years while the latter held talked to Ferrari about a race seat in 2013. Before the 2011 Japanese Grand Prix, he signed a three-year extension to his contract with McLaren. Button was satisfied with the new MP4-27 car due to McLaren finding a regulation loophole banning the blowing of exhaust gases over parts of the vehicle to improve downforce. A victory in the season-opening and two-second-place finishes at the and the were the highlights of his first half of the season. His overall performance in the first seven races fell due to difficulty in generating temperature and the correct amount of grip into the new Pirelli short-life front tyres due to his smooth driving style and him switching brake materials multiple times to try and fix the issue made it worse. Button changed the set-up of his car and adapted himself to the tyres to retain temperature for better performance. The rest of Buttons season saw him achieve wins in 