The German TÜV NORD agency has certified that more than 40 percent of the mass of a new Golf is made from recycled materials. That’s over 1,161 lbs of metal, glass and fluids. The vast majority, over 1,100 lbs, of that is metals such as steel and aluminum which are readily recyclable and, in fact, much of the metal used in many new cars is recycled scrap.
For example, when engine components such as blocks, heads and crankshafts are machined, all the chips are collected, washed and sent back to foundries and mills and fed back into the production process.
Source: Autoblog Green