Minor fixes and optimisations

Updated ad networks
Fix for no ads issue on some devices

Updated ad networks

Optimization
Privacy info

Free level building
50 new buildings
2 new biomes
Redone main hub

Crash dummy
Additional levels

Improved performance
Additional levels
Additional car parts
New level designs

Incremental upgrades in garage! Now you can upgrade your car!

- garage
- optimisation
- new cars
- new wheels
- new materials
- new levels

Updated game play optimisation

Updated UI
Added sounds
New levels
Optimised game play