Reward: Sugar varnish
To not make it boring, this track actually IS difficult. It's easy to encounter the police (especially, when you complete the game same way as I do - racing through the districts without giving any attention to pursuit indicators). The track itself is curvy, nasty and won't let you make any mistake. At the beginning avoid the tunnel entrance and go through the first radar. You can also try to use the tunnel's jump to fly across the radar with higher speed, but that's risky. Then we will get into a combination of corners with medium difficulty level, but relax, the worst will come :) First we have this corner (#1). It's the most difficult one at this point of the game. You MUST brake entering it, and you must do it wisely going to the outside and cutting it just to exit near the edge on the other side. It's best to accelerate in the middle of the corner. Then we will have a highway - time to get some rest before next hellish combination. When we exit the highway, there will be another shortcut (#2), which will let us have higher speed on the next radar. After that we will encounter difficult combination of corners - entering this one properly (#3) will allow you to complete the next one with ease (#4). I think that the screens are showing all. Then it will be easy right to the finish line.