Strive for 5 green leafs! Eco-driving!
Dude, it is like a game. I have been sucked into it for the past couple of weeks.
I just have 2 more leaves left for shifting and then they are all filled. I am not sure if the flower fills up on the MPG screen or not. I assume the gear shifting, anticipation and speed being filled gives you the trophy. After that I don't know what happens.