As a foot note for pedants and rivet counters... Grumpy and I met today and chatted about the Messerschmitt bf109 among other things and agreed that it was actually powered by a Daimler Benz engine, although Mercedes Benz was pretty much the same animal.
I have subsequently discovered that the prototype Version 1 proving aircraft were powered by Rolls Royce Kestrel engines, provided by RR in exchange for a Heinkel, for use as an engine test bed.
__________________
|