I traded my 2013 328i for the 428i GC. I've had about three months to evaluate the car, and, so far, so good. It looks gorgeous from any angle. The turbocharged 4 delivers generous power at any RPM. The car handles curves and turns with grace. Cargo capacity is great with the hatchback design.
Buy all the options except the winter package unless you needed it, same for the x drive. The best BMW, including safety, on the road. The M upgrade is worth the price. The 19" run flats are quiet and smooth. Best car in design and quality I have ever owned. ( new cars every 2 years since 1962!). The room in the back is spectacular. The 6 cylinder engine is very quiet, smooth and powerful. The design is a head turner. After a year of ownership I am really in love with my Grandcoupe. For the first time, I'm Going to keep this car longer than 2 years.
Even in comfort mode this car wants to run. If your not watchingtheguages it hits 65 and above quickly. Best 0-60 time was 4.3. Triple digits can be reached safely with little effort. Average gas mileage on 2000 mile trip at 70+ was 33. Around town in Econ about 27. Great dealer service. This was a fully equipped every option except the head light package. Extremely driver friendly and draws attention. Plenty of cargo room for long trips. Last trip was 5000 miles 30 days.