References to the medical field are highly welcomed but should still tie in to the core service which is to repair motor vehicles, ie, Cars, Trucks, and eventually Trains, Boats and Planes.
Keeping that in mind, this logo will be branched off into variation logos as the services, and children companies begin to grow. For Example, Fleet Doc Racing, Fleet Doc Marine, Fleet Doc Cycle, etc. Therefore, it should be meaningful to the current and future customers but offer some room for future variations.