Blend of tiles, wheels, and tuning. Minifig scale.
About this creation
Love the chrome exhaust pipes! I think this is my smoothest (i.e. most tiles vs studded bricks) MOC yet. Made with the newly obtained pieces from the Echo Base set. 2nd, top-off version to come. (http://www.mocpages.com/moc.php/188825) As said in the introduction, this is minifig scale. And, as you can see from the pictures, a minifig (even with hair) fist comfortably inside.