Since you were originally contemplating the 325i, what with it's huge-ass 192hp I-6 engine, I believe FC is of little importance to you? I agree with what our bros said here about the Cefiro. It's really nice and cheap to buy. But I'd go a step further and suggest the Cefiro 300EX. There's a 2005 unit I saw selling for 400k (matatawad pa yan, trust me

) with just 40tkms on the clock. 3.0V6 engine should yield you 4-6km/L in city driving with 4 being pretty much the worst and 6 in the best conditions with a very, very, very light foot. 220hp is 220hp and the satisfaction you will get is really very much worth the money. You don't have to spend much on performance too since it's already powerful.
However, if you want to work your way up the power curve, get an A32 Cefiro with manual transmission.
Since only the pre-facelift A32's have manuals, you can start with facelifting it, and then go on with the performance stuff. Or, if you want something newer, the A33 Cefiro with the VQ20 engine has 10hp more than the one in the A32.