Here we have a really nice vintage battery operated remote control Buick Police Car with flashing beacon manufactured by Linemar Toys in the 1950's.  This car does not work as it's intended but a tinkerer would have a fun project soldering the wires back together, I think.  The battery compartment is nice and clean.  Takes 2 D batteries.  Car measures 7" long approximately 3" tall (at tallest point ) and 3-1/2" wide.  In very nice cosmetic condition.   This has clearly been taken care of over the years.  See pictures.