Game crashes on my iPhone 4s

The game is great love the different modifications you can do. The only issue I have is that the game crashes constantly. Some times I have to load the game 3 or 4 times before it loads with out crashing. This is a 5 star game but i cant give yall 5 stars because the crashing issues brings yall down. Love the game please fix the issue and I will change my review.

Harvesterboy about Gigabit Offroad