Schuco Studio
The left and the right car is a Schuco Studio 1. The middle one is a Schuco Studio 5. The silver one is produced before the war in the 30's. It was inspired by the famous silver Arrow from Mercedes that was very successful on the race tracks.
The blue one (left one) is the version made after the war, and the underneath is marked Made in Us zone Germany. The last Schuco Studio 5 was produced in year 2010 and it was the fifth version of the schuco studio made. Limited to only 1000 pieces worldwide.