1 week later, I read about this:
A recent study shows that an all-aluminum vehicle can reduce its total body weight by 40%, which provides an 18% boost in fuel economy over a comparable steel based structure. The auto industry is really starting to take notice. For example, Tesla's (NASDAQ: TSLA ) red-hot Model S boasts of an all-aluminum body. Not only is the all-electric car producing stunning performance, but it also received one of the highest safety ratings ever from the National Highway Traffic Safety Administration. That's because, pound-for-pound aluminum can absorb twice as much crash energy as steel.
Aluminum is also starting to really catch the eye of Ford (NYSE: F ) , which is considering using liberal amounts of it to build the next generation models of its F-150 and Mustang. Not only would replacing steel with aluminum boost fuel economy, but it would also increase performance and safety.
Because of this, Alcoa sees its automotive aluminum sheet sales tripling by 2015. Most of that move will be because mass market producers like Ford are seeing the benefit of switching to aluminum for the body of the vehicles it makes. Overall, Alcoa sees the use of aluminum auto sheets for vehicle bodies quadrupling to 420,000 tons by 2015. That's in addition to a 15% increase in aluminum used elsewhere in the vehicle to a total of 2.66 million tons by 2015.
Ford is definetly using more aluminum in its F-150 trucks which means two things;Ford will repeat the practice amongst all its products;other vehicle manufacturers will follow.They just gotta work out the bugs!
if people pay attention, auto industry is hot again and all automakers are using more aluminum,
replacing steel with aluminum involved design. many go from v8 to v6 and get better performance,
because aluminum was used in many parts of newer cars.