...and the Breva's race-winning predecessor was which bike?
The Breva is as much a sportsbike as a five year old BMW R-1150R.
You can define the bikes anyway you want, but the fact is races were won in the 1970s and 1980s on Tontis and in the 1980s and 1990s on spine-frame bikes. If you count AHRMA, Guzzis are still winning races. Did you happen to notice the 2007 results at Daytona ???
Define "GT bike" for me. The funny thing about that term is that no one uses it. "sport", "sport-touring", "touring", "supersport", "superbike", "hypersport" are all used in print by manufacturers and journalists to define niches. "GT bike" isn't. And, there aren't set-in-stone divisions between each of these groups. The dividing lines are blurred and grey. Not black and white.
An R1 is a Superbike, just like a Ducati 1098. There is a wide gulf between a superbike and whatever the current lineup of Guzzis should be called.
There is plenty of room there for a sporting motorcycle based upon the MGS-01 chassis.
Ducati's SportClassics are great sportsbikes. No, they're not competitive with R1s and Gixxers (and aren't intended to be), but they are still sportsbikes...
It doesn't have to be a race bike to be a sport bike...