This is a great car, it's roomy, fun to drive, really well built, pretty fast, and incredibly fuel-efficient.
I get 43-45 mpg in my commute, mid 50's on the highway (I got 59 mpg recently), and mid 30's in the city.
The Golf is surprisingly good in the winter (I put snow tires on it), it got through over foot of snow in my driveway pretty easily last winter.
This car constantly surprises me with its talents.
Everything is easy to use, excellent fuel economy, surprisingly refined engine, quiet, nice transmission, tons of space, great seats, comfortable ride, good steering (it is a little numb), great back seat, very nimble, great visibility, and excellent quality.
Ideally the 170hp 2.0 TDI from Europe, the European GTD's styling would be great, a little weight loss (as long as it doesn't hurt safety), and possibly a 7 speed manual (currently one doesn't exist other than the 991 Porsche 911)