It depends what kind of vibration it is but it doesn't sound too bad...
Normally wheel balance issues can be felt through the steering wheel and tend to cause a vibration at the same vehicle speed, regardless of engine speed, so... does the car vibrate at the same vehicle speed but at different revs (e.g. coasting, or in another gear)?
If it vibrates at the same vehicle speed regardless of engine speed, it could be the wheel/tyre. If it vibrates at the same engine speed regardless of the vehicle speed, it may be something on the engine.
No bullets for Chaingun..