steadycar
nounUK /ˈstɛdiˌkɑː/
US /ˈstɛdiˌkɑːr/
A steadycar is a little car that rides very smoothly and does not wobble.
The steadycar rolled down the track without shaking at all.
OTHER MEANINGS
2. A toy car built to stay balanced on bumpy surfaces.
He pushed the steadycar over the rug and it never tipped.
3. A small vehicle used in games that must keep a constant speed.
In the race, each steadycar had to go the same slow pace.
4. A nickname for a calm, dependable car.
Grandpa calls his old blue car his steadycar because it never breaks down.