Porsche's made boatloads of money off of its Cayenne, and now the German automaker is coming out with a smaller SUV called the Cajun. Naval researchers have figured out how to modify a radar gun to detect suicide bombers . . . and underwire bras! Chrysler is joining the "ratio race" by announcing plans to introduce an eight-speed automatic transmission. All that and more, plus a review of the brand-new Volvo S60.