If we are talking technology then FW-190 would make sense as it was a BMW engine in that plane. Despite the air force it was associated with it was still a brilliant peice of machinery. This would not be offensive.
Luftwaffe could be though.
Sapphireschawarz E90 335 /// Sports Package /// Terra-Dakota-Aluminium /// Comfort Access /// Steptronic-Paddles /// Discharged in Halifax