i need help with making a game like Mario Kart 8

hi i am trying to make a game like Mario kart 8 i was using the car in the stranded assets but that is not what i wanted meanly because i cant get the cars to go over jumps and i cant find a way to make a glider for the cars if some one can help please do just so you know i am still new to making games i have made some games tho i made a fps zombie survival game and some 2d games like Mario
by the way sorry but i don’t spell well

if you need anymore info just tell me what you need