Cars don't produce oxides of sulfur dioxide. They produce sulfur dioxide (SO2), which is an oxide of sulfur.

Here's why:

* Fuel Source: Most cars run on gasoline or diesel fuel, which contain small amounts of sulfur.

* Combustion: When these fuels are burned in the engine, the sulfur reacts with oxygen in the air to form sulfur dioxide (SO2).

* Exhaust: This sulfur dioxide is released into the atmosphere through the car's exhaust system.

It's important to note: Modern cars have catalytic converters that help reduce sulfur dioxide emissions significantly. These converters use chemical reactions to convert SO2 into less harmful substances.

However, older cars, particularly those without catalytic converters, are a major source of sulfur dioxide pollution.