Note that the "boost button" disappeared in 2014 [1]. (K)ERS usage is not controlled by the driver anymore [2]: [1] http://www.bbc.com/sport/0/formula1/2515810

Note that the "boost button" disappeared in 2014 [1]. (K)ERS usage is not controlled by the driver anymore [2]: [1] http://www.bbc.com/sport/0/formula1/25158104 http://www.bbc.com/sport/0/formula1/25158104 [2] http://www.formula1.com/inside_f1/understanding_the_sport/8763.html http://www.formula1.com/inside_f1/understanding_the_sport/87...