This particular Supermarine was powered by the GM Isuzu quad cam V6.
JetPhotos.Net Photo » 19-4024 (CN: 019) Private Spitfire Mk.XXVI by Robert Frola
JetPhotos.Net Photo » 19-4024 (CN: 019) Private Spitfire Mk.XXVI by Robert Frola
Judging by the level, pancaked position, it seems fair to assume that a low level stall was the reason behind the crash. Whether that was because of pilot error, or powerplant failure, remains to be seen.
http://www.wattsbridge.com.au/pdfs/qua_june2010.pdf