It was first introduced in 1966, it first reached the top of the 'annual sales' chart in 1974, and as of 2018 it is the car model with the highest number of sales in global history. What car is this?

Oil is measured in barrels, which is equal to 42 US gallons or 159 liters.

Venezuela leads the world with 300.9 billion barrels of oil reserves – a 17.8 per cent share of global reserves.