We bought a car exactly one year ago February 2009. Six months later the head gasket went out. It was covered by a warranty which would of been ok, but UAC/CarHop would not let the mechanic put a new head in, UAC/CarHop bought the used head and sent it to the mechanic to repair our car. The mechanic told them that heads have to be new because all heads are aluminum and are warped unless they are new. UAC/CarHop told the mechanic to put in the used head. So 6 months later the head goes out again and this time UAC/CarHop says it is out of... read full review »