I just got out of a sneak preview and say a Lambo (i think) get airborne after spolier came off. Car was using nitrous and was going over 220 mph. I know in the movie that it was CGI, but does the spoiler really keep the car from lifting off?
Yes it does. You know how a planes wings keep it in the air. Well on a car the flip that design and put it on a car to push the car to the ground.
In some cases yes. But a car has to be equipped with a front aerodynamically front. If at any time air gets under from the front of an speeding car, truck etc. it will lift-off. With no control over steering. If enough win gets under a car it will cause it to flip - end over end just as a speed boat would. The rear spoilers are used to only give downward force to the rear. It will not have any affect on the front. Hope this helps answering your question?
I've managed to get a car airborn at much lower speeds than 220 mph. All it takes is an appropriately sloped railroad crossing and no concerns about whether the car lives or dies. A car lifting off from aerodynamics, though, isn't going to happen. They almost always do very scary things long before they're going fast enough for takeoff, so that it's pretty much impossible to reach those speeds. Modern exotics don't rely on wings for downforce, either - the whole body generates downforce.
