No way they will use F1 V10, even tweaked. Basic F1 engine has extremely long mileage to rebuild - something around 1000km. OK, let's say they tweak it. Then it'll do 50K km to rebuild and will cost a fortune to produce, run and rebuild. The car with such eninge will have the faith of BMW M1....
Articles speaks about V10 of M5. That's more likely. But, hell, who needs such engine? Even the aforementioned M5's V10 is limited to 400hp in normal conditions, with a "Power" switch to join the other 107 cheerleaders to show off.
95% of customers for this car don't even use it's full 400 hp... :roll:
As for styling - I'm afraid we'll never see the classic BMW look again. Not on standard cars that come from the plant...