This is a Small Micro Machine Ford Station Wagon in Yellow Private Eye.  With a Private Eye you can hold the window in the roof to your eye (with an light source behind it) you can see a cartoon cell showing what is inside.  It is made of plastic and is a highly detailed, Note the grill.  It is about 1 3/8 inches long.  I bought this as part of a job lot and it is in good condition.  The coin in the picture is a Dime to show just how small this item is. 

I will gladly combine these small items to save on the shipping.  Each additional Micro Machine item would be just $.25 for shipping.