Ram, America's off-road truck leader, today introduced the Ram Rebel TRX concept. Rebel TRX is a 100-mph off-road machine with 575 horsepower - the most powerful half-ton truck the company has ever built. Ripping over pavement at speeds greater than 100 mph is an experience, but the Ram Rebel TRX concept hits triple digits in an off-road environment with the help of a supercharged 6.2-liter HEMI(R) V-8. "Ram Truck heads to the 2016 State Fair of...