Looking for car (cigarette lighter receptacle to lightning) charger for iPhone 5
Due to the new Lightning connector introduced with the iPhone 5, you'll need a car charger specifically built for this connection. A quick Google search gave several hits e.g. Amazon iPhone 5 Car Charger - Lightning Connector or Belkin Car Charger with Lightning connector for iPhone 5 (10 Watt/2.1 Amp).

Nothing changed on the cigarette lighter side of things, so these chargers should work with older cars as well.