Originally Posted by pewe
Not sure why there are so many - different engines? where's the engine code/
They seem to have added some extras to their database making it look more complicated than it is

Working from the bottom of the list , the last two (the ones that start M160) appear to be the same (but one has a typo so has been made a separate entry as a result), that I believe is the original 599 and 698 engine
the next three up the list (the M132 and 3b21 ) are the mitsubishi 999 engines (presumably turbo and non turbo variants) ... M132 being the merc reference numbers, (the 3b21 is the mitsubishi reference to the same engine)
You'll probably find the same reference somewhere in the V50 document data?.