Which is better in the way it makes power, tuning ability, and reliablity wise? Is the newer verisons sole purpose to reduce tail pipe emissions?
Also I am not refering to the TFSI 211hp 2.0T motor found in the B8 A4.

I just came back from the Philly auto show and see the new 2.0T has the oil filter right on top near the dip-stick :) Wow after all these years........