Ares' War Chariot

Ares' War Chariot is the personal chariot of Ares. It is normally driven by either Ares or his sons Phobos and Deimos. Sons of Ares, with the exception of Clarisse (an exceptionally talented daughter is allowed to drive it as a rare privilege) normally drive it as a test at age fifteen.

The Lightning Thief
Ares rides on it in the form of a motorcycle when he approached Percy, Annabeth and Grover with his "request" to retrieve his shield from a tunnel of love ride at Waterland. He's also seen sitting on it as he waits for them at the beach when they escape the Underworld.

The Demigod Files
In The Stolen Chariot Ares' daughter Clarisse is given the test of driving it around for a day, (an honor normally reserved for Ares' sons), when it is stolen by Phobos and Deimos. With the unexpected aid of Percy, Clarisse recovers it and returns it to Ares' Temple on the Intrepid (which is a battle cruiser) before sun down.

Appearance
It is red and gold and has pictures of people dying painful death adorning it. It is pulled by a pair of fire breathing horses. Like Apollo's Sun Chariot it can become various vehicles, a car, a motorcycle, a tank, etc.