DETROIT (AP) — General Motors, Ford, Chrysler, Toyota and Nissan all reported double-digit sales gains last month, clear signs that U.S. auto sales will remain strong into the second half of the year. “Solid industry … is driving sales. [...] automakers have been rolling out appealing new products in every segment from subcompact cars to big pickup trucks. … Photos: Strange, painful finger wrestling in Germany … 20 weird creatures we'd be impressed to see on Mars