This is a China casting of a 1927 Miller sprint car it has a metal body and base with a plastic interior.
a. mf white, silver metal base, black int., gold and black design w/“Miller”, “SPL” and “15” on sides, wrr. Auto Affinity – Rebel Rods (2004) 2 – 5
b. red, silver base and grille, black int., silver and black scallops and “3” on sides, silver gas cap, wrr, Ch. Auto Affinity – Rebel Rods (2004) 2 – 5