Explain the problems faced by aluminum vehicles?
As part of the ever-increasing effort to maximize fuel economy, carmakers are more than often substituting aluminum for steel to build body panels in order to save weight. Both producers and consumers are finding that aluminum is great to work with in terms of gas mileage, but it can cause other problems to surface.
Aluminum is seen as one of the best ways to reduce hundreds of pounds of body weight all at once. Ford has been a leader in embracing the material at a volume level, and they have placed a huge bet on their aluminum crash diet.