Link to video.

The above is US gun cam footage taken over Germany in 1945. Unfortunately the footage is rather low resolution, but you can make out various horse-drawn wagons and at least one truck being strafed. The caption states these are farm vehicles under attack, but as the Heer used many forms of horse-drawn tranportation this claim cannot be verified.

The video does not have it's original audio, just a noise track so you may wish to mute it.