Extract the zip file and just drop the contents in the wp-content/plugins/ directory of your WordPress installation and then activate the Plugin from Plugins page.

When CarDojo is activated for the first time, the CarDojo Quick Setup Wizard helps you set up your website.

Select Let’s do this! to get started. Or select Not now, I’ll do this later if you prefer to manually set up your CarDojo website.

IMPORTANT! After activation go to your admin area and click settings, then select permalinks. Add there click save permalinks, it will help to get the new custom post types slugs correct.