It is clearly visible, that most former British colonies – with some exceptions -, drive on the left side of the road, whereas the United States of America, Latin American and European countries drive on the right.
With just a very few exceptions, almost always, in countries where people driving on the right-hand side of the road, the cars are built so that the driver sits on the left-hand side of the car, while driving on the left-hand side of the road usually implies that the driver’s seat is on the right-hand side of the car.
Google map of the driving sides of the countries
In which countries do the people drive on the right side and in which countries do they drive on the left side? On the Google map below you can also find a complete list of all countries of the world and the side of the road the inhabitants drive on.