Jada Toys Heat - 1951 Mercury Fire Dept. #51. 1:24 scale diecast collectible model car. This Fire Department Mercury is an 8"L x 3"W x 2.5"H die-cast car with openable doors, hood and trunk. Rims: Moon Disc. This 1951 Mercury is manufactured by Jada Toys. Individually packed in a window box WB. Box size: 10"Lx 4.75"Wx 4.5"H. 6 pcs per inner box. 92454F is in RED color with flames. Launch date: May 24, 2011.