Rai jin glitch

i glitched the rai jin with speed boost then raced another rai jin on south bay up to the observatory. It doesn't  actually  make it faster it just increase's its acceleration it could have just  been a bit of rubbish drivin by me but they started to keep up with each other on south mountain and  that is uphill so i dont know wat is is like on a actual race unfortunately i cant test this on a race because the glitch dosen't transfer  to racing