Automotive

A convertible car is a car with a roof that can be folded down or removed. Convertibles usually have two doors, although some have four, and they may have a soft fabric roof or a hard roof made of metal. You take the roof off when the weather is nice, and put it back on when it is cold or rainy.

A freeway is a very large road that can fit a lot of cars on it at the same time.

Freeways are meant to be driven on quite fast.

A road is a long, flat, hard place that vehicles like cars and trucks drive on. Roads connect towns and cities to one another. Roads can be thousands of kilometers long, and be made of hard asphalt, concrete, or just dirt.

Spokes are the thin parts of a wheel that connect the center of the wheel to the edges. Not all wheels have spokes, some are solid. Almost all kinds of bicycle wheels have spokes. Spoked wheels are lighter than solid wheels.

A throttle is a control that regulates how much power an engine produces. In a car, motorcycle, boat, or airplane, the throttle controls the flow of air and fuel into the engine. Opening it makes the engine work harder and move faster. It is usually connected to the accelerator pedal.

Throttle also means to limit, reduce, or slow something.

In many cars, the throttle is connected to the accelerator pedal. When the pedal is pressed, the throttle opens wider, allowing more air into the engine. The word comes from an old English word meaning to choke or restrict, because a throttle partly blocks the flow of air.

A traffic cone, also called a Witch's hat, is a brightly colored, conical object made of plastic or rubber that is put on the road to warn of something dangerous. You usually see them when there has been an accident, or they are fixing the road.

A tyre (also spelt tire) is a hard, black, rubber layer that goes on the outside edge of wheels. Most tyres are filled with air. They make driving a car or bicycle much more comfortable.
The zigzag grooves in tyres are so they grip the road better and stop your car from slipping around.