App Store Endless Driving Game

I've recently seen several versions of the same game all over the app store.
I'm assuming that it is a Unity project because of the 3D, and some assets which I've seen in the unity store.

https://itunes.apple.com/US/app/id820338840?mt=8

https://itunes.apple.com/us/app/highway-maniac-3d-ridge-racing/id813657832?mt=8


Does anyone know which kit these games have been based on?