Not only do cars consume lots of petroleum, they are also made of it, especially the interior. The dash, the seats and the paneling are all often made of petroleum-based polymers. But Ford is taking a step to reduce the amount of oil needed to build its cars by making the seat cushions out of soy-based foam. Don’t worry, you can still get those soy-made seats covered in not-so-eco-friendly but oh-so-luxurious leather. Earth2Tech has the full story.