Four-wheeler and Go-cart

Four-wheeler noun - A hackney carriage with four wheels.

Go-cart and four-wheeler are semantically related in car topic. In some cases you can use "Go-cart" instead a noun phrase "Four-wheeler".

Go-cart noun - Wheeled vehicle that can be pushed by a person; may have one or two or four wheels.

Four-wheeler and go-cart are semantically related in car topic. You can use "Four-wheeler" instead a noun phrase "Go-cart".