According to CNN’s Fortune and simple, cold-hearted business logic, now is the prime time for American manufacturers to take advantage of recent catastrophic events and pounce on their home market's consumers. A lack of Japanese parts (or entire vehicles), in conjunction with a strong yen and ever-improving American small cars, has given Ford, GM, and Chrysler a potential sales pick-me-up as we stroll into the summer months.
Two of the three factors which will help American manufacturers' sales stem directly from the tsunami in Japan a month ago: factory shutdowns have limited parts/vehicle availability, while the yen gained value as the Japanese are expected to repurchase some currency for disaster mitigation.