As the child shakes the car more, the engine revs higher and higher until it is fully charged up
There is a direct correlation between the amount of shaking and the speed of the motor and the length it runs
The Shake *N Go Racers Superman Racer is a licensed car based on the character Superman
Cool sound effects
Great details, cool designs

Technical Details

Size (LWH): 3.75 inches, 7.25 inches, 8 inches
Product Details
Product Dimensions: 3.75 x 7.25 x 8 inches
Package Dimensions: 3.75 x 7.25 x 8 inches
Shipping Weight: 1.3098 pounds (View shipping rates and policies)
ASIN : B000XZXC7A