Quote:
Originally Posted by 530iDriver
The 520i is not sold in North America but it is essentially a detuned B46 2 liter 4 cyl gasoline engine with only 180hp at the wheel. It is a fine city car but definitely challenged in the G30 application.
The 530i has 58HP more than the 520i. While the 530i is the base trim model in the US and Canada, the 530i is a mid grade model in Europe and other world markets.
520i is the entry level gasoline G30.
There is also a 518D diesel, 520D (Best selling model), 525D and 530D (6 cyl in line turbo diesel).
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The 520i has a B48 engine, I believe the B46 is for places like California with strict emissions rules and used in other (ie non 5-series) applications
Although the 520i is never going to be as fast as a 530 or 540 it is perfectly adequate, you just have to work it a bit harder if you really want to make progress. It still does 0-60 in around 7.5 seconds so is certainly no slouch.
Apparently in some markets eg Turkey there is a 1.6 litre engine - I'd imagine that would be a little underpowered