 I purchased a 2014 Elantra (assume same issue with all Hyundais) from a dealership in April 2015 that had 1,700 miles on it.  Because I wasn't the original purchaser (it had been turned in on a lease), the 10 year 100,000 mile power train warranty was voided.  I didn't understand that at the time, but my ignorance is not excuse.  However, the 60,000 mile bumper to bumper warranty remained good according to the service department.  At 62,000 miles the engine, in short, went bad and required replacement.  Although I had treated the vehicle with kid gloves with regular maintenance (oil/filter changes, etc.),  Hyundai would not pay for the full cost of repair ($6,500) and would not pay for a rental for the garage time needed  to replace the engine.  After some negotiations, Hyundai did eventually agree to pay for half of the cost of a new engine, of which I am thankful.  Bottom line, the Elantra has a poor engine, and the warranty should be thoroughly understood. Their motto, "Better Built, Better Backed, Better Driven" is at best misleading, and at worst dishonest.