Where and when it makes the noise is imortant information.
Most common is Power Steering pump when turning wheel quickly: Check power steering fluid level. If low, add proper fluid (check with engine off!!)
Also, noise when driving, esp. over rough road going slow, ball joints: lube font end.
You can use a car noise database to compare noises at mycarmakesnoise.com
Vroom Vroom
Check under your car... you may have lost a muffler.
chiken
engine
it does this because it just does
Get bin Laiden
Depends on where the noise is whats making the noise. Can you be more descriptive of where and what?
tie rod
cars tend too
Car
Sirens on a police car either makes "Noise" or "Wails".