Map to the town of Gran Turismo: link
Gran Turismo. A city full of wealth, and ponies that love cars. Most of these ponies are either illegal street racers, or cops. This is based off of the Gran Turismo video games, when you go online, there are these lobbies where people play as cops.
Now if you take a look at the map, you will see blue squares. Those are police stations. Red squares are fire departments, and white squares are hospitals.
Yellow triangles are autoshops. The one with the red center is Local Consideration, popular for it's high quality parts at a fair price.
The brown lines are train tracks, while the black lines are the roads. Any road, or train track between white lines represent bridges.
The brown area between a road, and a body of water is a dock. Ships from the Atlantic ocean enter this dock, and head back out again.
Orange circles are meeting points for the bad guys.
Purple hexagons are gunshops.
And finally, you will see a red square. That is a train station.