Suppose that two countries, the U.S. and Germany, produce only two goods: computers and cars. Let's assume that both goods only require labor hours to produce, of which the U.S. has a total of 320 million and Germany has a total of 80 million. German workers take 10 hours to produce each car and 8 hours to produce a computer. U.S. workers, on the other hand, take 4 hours to produce a computer and 6 hours to produce a car. Which country has a comparative advantage in car manufacturing?