Pegasus

Pegasus is one of the sons of Poseidon, taking the form of a winged horse or a white Lambourghini.

Background
Pegasus and Chrysaor were both the sons of Poseidon, although Zeus claims that he created Pegasus from the clouds. Poseidon seems to favor Pegasus over Chrysaor, who is currently known as Pan.

Volume 3
Pegasus flies Poseidon to Paris, France to arrange a meeting with Boreas, the north wind. Whilst in public, Pegasus is under a glamour and appears to be a white Lamborughini to the human eye.

Family

 * Poseidon (father)
 * Pan (brother)

Trivia

 * Pegasus is based on the same winged horse from "Greek Mythology" as well as the Disney film Hercules.
 * When in the form of a Lambourghini, his number plate is P3GA5U5.