This aircraft is a Me109G-2, Schwarze 6, captured in Tunisia in 1943, and in the colours of JG77. No longer flying unfortunately but can be seen at the RAF museum in Cosford.
The G did not serve in North Africa during CRUSADER, but its predecessor, the earlier F-4 did and was a major headache for the allied fighters, remaining superior to anything the Empire air forces could field in North Africa until the arrival of the first tropicalised Spitfires in late spring 1942.
JG77 did not serve in the North African campaign in the early stages in 1941/42 . They only arrived as reinforcement during the final stage of the El Alamein campaign, having previously served in the Malta air campaign, in late October 1942.
Captured fly-worthy enemy planes were of great interest to the RAF for research purposes, as can be seen in the picture below.
Pilots of No. 43 Squadron RAF inspect an abandoned Messerschmitt Bf 109G of 6/JG53 at Comiso, Sicily. (IWM CNA 1045)
Her complete history is at this link (opens PDF).