As we can see in the photos, the 4 Series takes a lot of its design cues from the 3 Series on which it is based, but there's a lot more in the way of attractive body sculpting, and this production model stays true to the original 4 Series Coupe Concept that we saw at the Detroit Auto Show earlier this year.
We don't have official details to divulge just yet, but we can discern from the photos that the range-topping coupe will be the 435i model, likely powered by BMW's turbocharged 3.0-liter inline-six from the 335i. There will no doubt be a 428i model with a 2.0-liter turbo-four underhood, and we expect BMW to offer its xDrive all-wheel-drive system on both models. Much like the 3 Series, a variety of trim levels will be on offer, including a top-spec M Sport trim that you can see painted in Estoril Blue here.
Stay tuned for the official 4 Series details later today, but for now, have a glance through our gallery of leaked photos, above.