I gave my 73 yo Dad our GoPro for his lifetime dream of flying in a Spitfire. I trimmed out this 50 sec dive and roll from the 45 minute video.
http://youtu.be/Zh_6zZWsTWk
I think this is the aircraft in question:
ZK WDQ (civilian registration) or MH 367 (Royal Air Force designation) was constructed in its original form at the Castle Bromwich factory in July 1943. It was a Mark IX with a Merlin 61 engine.
The aircraft saw Wartime Service initially with No 65 Squadron RAF with a first operational sortie on 15 Aug 1943. Its last combat sortie was on 18 April 1945. MH 367 was scrapped in 1948 to be rebuilt in the USA using components of several aircraft to fly again in November 2006.