It can be played online on http://www.netfreegames.com/car-racing/tuning-uno-quadrado.html

A game of tuning this famous Brazilian classic car, the Uninho Mark 1. Buy, restore, tune, test and sell cars. Change colors, wheels, spoilers, customize a lowered suspension, etc. After customizing the car, you can save the image to use wherever you want.

This game was made by an indie developer. Copyrights on images and brands belongs to corresponding owners.