Some say that the Twinmill Number 6258 was the first concept car produced. This twin-engine car was designed by Ira Gilford. His design had two engines -“chrome plastic”, metal chassis, clear plastic windows and rsw tires.
This production was only manufactured in the United States and came in 16 different colors. Because they were very so many different color variations of the Twinmill, the value varies greatly. If you are looking for a value, you will most likely have to get a value out of a good Hot Wheel price guide –Tomart’s Price Guide to Hot Wheels: Volume 1: 1968 – 1996
If you have any questions about Hotwheels or vintage toy please leave a comment and I will answer you with my best opinion. For more on toys please go to my site at www.Texasantiquemall.com and go to David Hot Wheels.