Here is the video, the person recording is using a really rubish microphone, but you can understand what he says.
You can download a similar car like his for free from this link :
www . assetstore . unity3d . com/#/content/1843
I would also like to show you this :
fatboxsoftware . com/unity-shop/4574957483
Everything on this website [fatboxsoftware] requires payment to download, but there are some interesting assets on it.
You will have to remove the spaces between the letters as I am not allowed to post links or emails until I have this account for a week.