AT HIGHWAY SPEED VEHICLE BEGAN TO SHUDDER THEN LOUD "CLUNK" AND LOST POWER. SMALL ENGINE COMPARTMENT FIRE DEVELOPED BUT THEN THANKFULLY WENT OUT. VEHICLE WAS TOWED TO NEAREST SHOP WHICH INFORMED US THAT VEHICLE HAD THROWN A ROD AND WILL REQUIRE ENGINE REPLACEMENT. VEHICLE HAS NOW BEEN TOWED TO NEAREST HYUNDAI DEALER THAT "WILL GO TO BAT TO TRY AND GET HYUNDAI TO FIX". WE ARE NOT THE ORIGINAL OWNERS OF VEHICLE SO APPARENTLY THE 10/100 DOES NOT APPLY. VEHICLE HAS BEEN MAINTAINED PROPERLY. NEED TO KNOW WHAT TO DO OR WHO TO COMMUNICATE WITH TO GET HYUNDAI TO RECOGNIZE THIS PROBLEM.