When I was active I would say Bruv119 was the one I did not want to meet in my A8, or 109g6, however other players in their 38L was a shake-and-bake recepie for ending the mission very fast.
Fortunately Hitech never made an Mustang with 150 octane and 4 20mm, but meeting those F4u4 was best avoided if you did not have 100mph speed on them.