I was messing with the tune for my TrackHawk and ended up with 50k and now i can do 5.71 in a 1/4 mile Knockout 2 things at one time got money and a fast car
Or you can legit buy a camero and don't upgrade it and go to multiplayer put 8.9 for time and put 1/8miles and put 20k i gotten 1 million from it and only los 4 timez cuz of reaction time