This video says:
"This was originally a Marc Cars Mazda 3 series sedan which was converted to look like a BMW M235i.
Qvick Motors removed the Mazda body, leaving a tubular chassis.
Then they painstakingly fitted the BMW Body on the chassis.
The end result looks very good and it's a unique car now since Marc cars only make a Ford Focus and Mazda 3 sedan on this chassis."
It looks like a M235i Racing to me. But I would love to learn more about this conversion from a Mazda 3 chassis.