like the Thor Serrano, it's likely no longer a model Winnebago manufactures - when you go to their website, and click on Class A Diesels, only two show up - Horizon and Forza.
I also no longer see the Tour or Grand Tour, unless they are marketing those under the other brand, Country Coach, though I don't see them under their website either.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
110,000+mi since '14 - US, Alaska, Canada (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )b