1.4 is a very solid bump in fuel efficiency while not losing a lot of stock power. It would be really hard to justify a TDI over a 1.4 with the added maintenance costs, DEF fluid and diesel prices all over the map. 1.4 does substantially reduce the power potential if you want to extract more from it. If you want awd, they give you the 1.8 or 2.0 depending on the body you want.I can Imagine the costs, later down the road I met older drivers who just told me to save the money and get a car already done by engineers for the purpose, like a Porsche or something. I got a MK6 2.5L golf now, love it. How's the Mk7 with the 1.4T? I debated getting one, though I drove the new Mazda 3 hatch, and it has a 2.5L, comes in AWD, the new ones are turbo, and very fuel efficient, so may leave VWs for a bit, the Golf's German made pedigree is gone too.
Just for entertainment, here is what people are getting out of the 2.0 when they turn the screws. This guy is flirting with needing internal engine work. Over 500 hp and things start to break. He has a big turbo and water meth, I would guess e85 and mpi as well. 581hp, 506 tq for those that cant see the dyno plot. His 100-200 time is <6 seconds.