Unique corner and overtaking challenges for each track.
Car upgrade system with levels rather than just innovation/no innovation
More Play Games achievements (make them register first)
Fuel consumption rate should change linearly rather when altering aggression instead of being the same for e.g. 65% to 100% and then suddenly dropping at 64%.
Achievements have been added to version 1.2.4 (out now for Android, coming soon for iOS).
Ahh - now I understand - that's a good idea.
If you put aggression from 65% to 100% it will say the fuel will last you 19 laps. However, when you decrease the aggression to 64%, suddenly it will say that the fuel will last you 23 laps. I'm suggesting that perhaps each percentage of aggression should worsen fuel consumption by an amount.
I'm not sure what you mean by the fuel consumption comment - can you elaborate?