This car was given to Hot Wheels designer Larry Wood and was part of his collection. 

It includes a certificate of authenticity with matching holograms (on the base of the car and on the certificate). 

As mentioned this car belong to Larry Wood, it is a car limited to 200 pieces, and this listing is for car number 21. 

Mr Larry Wood signed himself this beautiful certificate. 

Most of the employees cars are given to unknown employees but this piece has a + because it was awarded to Hot wheels legend Mr. Wood.