What is the symbolism of the Firebird in the novel, The Key to the Golden Firebird?

The Firebird symbolizes Mr. Gold and his loving family. The girls each have good memories of the Firebird. After Mr. Gold dies, it is a year before anyone drives the car again. The Firebird represents freedom to May, who is able to drive the car when she gets her license. It is a symbol of rebellion for Brooks, who takes it out for the first time since her father's death and gets caught by the police. It is a symbol of comfort for Palmer, who gets into the car to think.