Everyone likes to go after the champ. When it comes to fuel economy, that means taking on the Prius, which is something that automakers not named Toyota have been trying to do for years. Just because no one has been able to beat the Prius for fuel economy numbers isn't stopping them from trying. Hyundai was just caught with a potential Prius-fighter and now we have news that Ford is joining the party. Well, is going to join again.