if you have a really fast car likeBUGATTI VEYRON witch will do about 270+?MPH how does any one keep it from the effects of lift and coming off the ground. cause my car will do 160MPH and you can feel the tires coming up. but it is not quite fast enough to take them off completely and really defy gravity
A spoiler usually does the trick.
Cars such as the Bugatti are specifically designed to go fast and reduce lift. In fact, with the proper speed, cars like this could be driven upside down (like in a tunnel). These supercars also tend to be lower to the ground. For cars that are not so super, a spoiler can usually help decrease lift.
Primarily it is a spoiler, ground effects and weight distribution.