World's best AWD system! The Role of All -Wheel Control (AWC) Performance, reliability and safety are three attributes that are core to the Mitsubishi Motors brand, and AWC plays a key role in all three of these attributes. Safety technologies and systems can broadly be broken into Passive Safety and Active Safety.
Pennies were made mostly of copper until  mid-1982, when the composition was changed â¦to 97.5% zinc with a  plating of 2.5% copper.    The only exception was in 1943 when wartime copper shortages forced  the Mint to make pennies out of scrap steel. Bronze cents were  resumed the next year, 1944.
Despite popular belief, since 1982 pennies have only been copper plated, not copper through and through. Much less expensive zinc makes up 97.5% of the mass of a penny, the rest is a copper coating. Nickels actually have much more copper in them -- 75% copper and 25% nickel. It's the same mix they have always had except for the World War II years, when silver and manganese replaced the nickel and some of the copper.