I was thinking and was wondering if you could do a three shot hdr while panning with a car or something. I will try it tonight, but do you guys think it is possible?
The way that you are saying it no it will not work out.
however you can achieve your desired result if you set your camera on a tripod
perhaps attach a sandbacg to it so there's no shift movement and if your tripod's head has marking indications like mine does you can shoot in aeb burst mode 3 shots then turn your tripod head to the next big marker which is 5 over and fire again another 3 shots and so forth.
It has ALOT to do with it. The point of hdr is to show all light ranges, right? There's few enough in MOST situations to cover the main subject with one exposure. Why do you need hdr on the background? How is that useful?
Here I made this IDX to show you what I mean I made this Panoramic in st thomas years back it's not hdr but same process with a cheap a** tripod I do mean really cheap the thing was basically homemade it looked like.
I was a po man at the time.