Puerto Rico's most popular transportation is the car. Public transit is not very good or available in many areas. They do have an urban train but it is very limited.
Bikes is the most popular transportation
Private car.
Basketball.Baseball is Puerto Rico most popular sport
The Tripleta is the most popular sandwich in PR.
Baseball
The most popular would be Jeep or Jeepney.
baseball or softball
The coqui is the most popular animal in Puerto Rico because it's native to the island and is very common to hear one at night.
In Puerto Rico, the most common transportation system are cars. Even though new ways of travel are coming along, people use cars to go to their jobs, for an event, to eat, etc. Probably the 2nd and 3rd most common types of transportation are public busses and trains (in the metropolitan area).
Rivera, Santiago
probably your moms house :)
Light aircraft.