(idiomatic) to initiate a chain of events necessary to help one achieve a goal (more quickly)

(idiomatic) Something failed, often after or amidst a laborious, tiring process.

plural of two-wheel tractor

A tractor with one axle, self-powered and self-propelled, which can pull and power various farm implements such as a trailer, cultivator or harrow, a plough, or various seeders and harvesters.

Engine layout in motor vehicles where only the rear wheels are driven.

An optical illusion in which a spoked wheel appears to rotate differently from its true rotation, sometimes caused by stroboscopic effects.

plural of four-wheel drive

(automotive) four-wheel drive when used as an attributive adjective.

Alternative form of the wheels fell off

plural of wagon-wheel effect