We should start with adding/listing some basics for those who aren't familiar with these and may be looking to acquire one in the future.
Basically in US starting with 88/89 you have the 525i with the m20b25, then you have the 535i with the m30b35. M20 was then replaced with M50NV, and later replaced with M50vanos. 530 and 540 cars came with the M60B30 and B40 , 3.0 and 4.0 liter v8 dohc engines. 530i were auto or 5speed, 540i were auto or 6speed. Then you have the DOHC big six motorsport (moneypit) engine in the M5. The 540i M-Sports were also rare, and came with the same M60B40 as used in the 540i/6speed for 1995.
Some components on the E34s are also shared with E32s.
I'll try and make this longer/better when I have more time.
Basically in US starting with 88/89 you have the 525i with the m20b25, then you have the 535i with the m30b35. M20 was then replaced with M50NV, and later replaced with M50vanos. 530 and 540 cars came with the M60B30 and B40 , 3.0 and 4.0 liter v8 dohc engines. 530i were auto or 5speed, 540i were auto or 6speed. Then you have the DOHC big six motorsport (moneypit) engine in the M5. The 540i M-Sports were also rare, and came with the same M60B40 as used in the 540i/6speed for 1995.
Some components on the E34s are also shared with E32s.
I'll try and make this longer/better when I have more time.
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