Help!!!!!!

Hi i have a wierd question

i have a 10 second jerry hass car but evrey time i race agaist one of the other guys me car turn off
we bothe burn tire and its ok then wnen we are ready to start i press the button on my wheel and when i step on the gas my car just turen off
the wierd thing is before i reace to that guy i did like 15 runs and evre thing was prefect but just whnen i race that guy muy car dosent work and i has happen to me 4 times
do anybody know what is happening to my car and if is any possibilitis that the otrey guy haves something that meakes my car off

What Car do you Have? , What is that button For? , why why?? Give me details here??
P.S what kind of car you have and setup? for being a 10's