You've played it and you've found it cool ? Let a tip to the developer. He will continue to make it better.

This DLC is a donation from you without counterpart from the developer. This DLC does not include any additional content, feature, special event or reward. It will does not affect or add content to your game's directories. The game will still be the same even if you do not purchase this DLC. Its only purpose is to help the creator of the free game "Classic Racers" to continue the development.