Fire Chariot...
The image of a fiery cart - sometimes called a chariot - being pulled by a Demon seems to be common in Buddhist art. I've come across several examples, including one that had a demon pushing as well. Unfortunately that example was very small - so small as to be barely visible. I would like to find a better version of it, but these images are the only two I could find. I believe it is also called a "Hell Cart". I'm sure the one saw had Mara standing in the back, but it has been a while so I could be mistaken.
...or Hell Cart
A cart inspired by these will be part of the Mara range in the Garden of Kama setting. The Mara themselves have already been sculpted and can be sen here.

