Quote:
Originally Posted by frankchn
This is the 300hp version of the 4 cylinder B48 engine. BMW's badging seems to correspond to horsepower. The current lineup is:
30i = ~250hp
35i = ~300hp
40i = ~350hp
50i = ~450hp or ~530hp depending on engine variant
60i = ~600hp
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I'll add on to this to say:
28i = Base FWD 4-cyl (X1, X2, 1, FWD 2)
30i = Base RWD 4-cyl (X3, X4, RWD 2, 3, 4, 5)
35i = Upgraded FWD 4-cyl (X1, X2, 1, FWD 2)
40i = Upgraded RWD 4-cyl (X3, X4, RWD 2, 3, 4, 5), ALSO Base RWD 4-cyl (X5, X6, X7, 7, 8)
50i = V8 (X5, X6, X7, 5, 7, 8)
So basically each series has 2 engine options, the base and the upgrade (I'm not counting M cars here for obvious reasons). The only current exception seems to be the 5 series with 530i, 540i, and M550i engine options.