When doing all the modes, you want to begin by looking for “Sweet Spots”. These are as follows: Parks for classic city, bush island for pirate bay, and garbage piles for future city.
To find the parks follow the blue striped car in groups of colourful buildings. Bush island is found around the top area in pirate Bay, but you want to have sized up once or twice before. The garbage piles are scattered around future city but will size you up once or twice on the first size.
Once you have done one park, the whole of bush island, or abou 2 or 3 garbage piles, you want to start going for cars. After that you will have about 10%, keep going and do buildings, ad you can have 25%, 50%, or even max size! -Thank you for the guide,GamingSans LapisDrago