"What is in front, the car or the bus?"
Translation:Mi van elöl, az autó vagy a busz?
The main rule is that the verb must be immediately after the question word. Other than that, parts can move around. The neutral version is "Mi van elől?".
You can also ask "Elől mi van?", which stresses the fact that you are asking what is in front. This is (only) appropriate if the conversation has already established that something else is somewhere else.