On a city street you should be looking ahead of you as far as the car in front of you?

No. You should be looking scanning everywhere for road signs, traffic ahead, and what people ahead of you are doing. and you should also watch around your car for things like cats or other animals that might try to run in front of you. at first when you start to drive you will probably look at the car ahead of you but the more you drive the more you will start to pay attention to everything going on