Is it possible to complete Asphalt 8 Airborne without IAPs?

Solution 1:

It is actually not possible to completely finish the game. That is not the goal of the game. You can, however, get rather far without spending any dollar. The most important thing is that you have fun, making progress is great too but not really necessary.

Solution 2:

There is only 0.096% chance (by luck) that you can complete the game. It involves the blueprints of certain McLaren race car which you will require to enter season 10 and some credits to upgrade your any vehicle to max level so that you can race in season 9. This chance is calculated through car kits reward giving pattern, but according to me till season 9 you can get DEVEL SIXTEEN PROTOTYPE, giving you the most thrilling experience out of your 2.5 GB game and it is worth it. Another thing, to save money you can look for some cars (for eg. chevrolet corvette C7 that provides you extra 16 star on winning while you dont need another chevrolet car), which gives you more stars per credit used.