Tl* the contact owns a 2012 jaguar xk. the contact stated while driving approximately 70 mph the vehicle started smoking and stalled in the middle of the highway. the vehicle was towed to the dealer. the mechanic diagnosed that the motor needed to be replaced. the failure occurred three times within two years. the manufacturer was made aware of the problem. the approximate failure was 8,000. the pistons and valve cover gaskets were replaced. the engine was replaced twice. updated 04/16/14..updated 06/23/14 *bf updated 06/2014 *js