Trend and Viva! are same motor, same chassis, just two different brands, Winnebago and Itasca.
If you are thinking Trend vs Via (Winnbago brand, there are Itasca versions of both) the first is a C, gas, built on a Ram Promaster van cutaway, North America version of FIAT Ducato. Via/Reyo ia an A, built on a Sprinter bare chassis, diesel for North America, and about $40,000 higher in price, though similar in size.
Trend may not be at shows because the are still pretty rare, in demand, and dealers are selling them before they get delivered. Buyers generally don't like dealers taking the RV they've alrready bought to a show. Except for a small number of very large shows, what gets to a RV show or an auto show is unsold dealer inventory. Shows are a sales tool for dealers to move their lot queens.
Tom Test
Itasca Spirit 29B
