The MP4-30 was launched on 29 January 2015. The livery is similar to the livery that McLaren had back in their seasons with German tobacco brand West. It was later changed for the Spanish Grand Prix, with one notable difference being the main chrome paint changed to darker "graphite-grey". The MP4-30 was the slowest car in the Jerez test. It had problems various times during the tests, except that it managed to complete 100 laps during the second day of the second Barcelona test.