45OPP BUS Questions

[Electra 225]

Hello Tiffin owners. Four questions.....
--What year did Tiffin introduce the one piece seamless composite slide-out box? Was it '17 or '18?
The following is directed toward those of you who came from Newmar DPs.....
--With the Powerglide chassis, do any of you miss Comfort Drive?
--Lots of talk about Newmar insulation and how quiet it is inside, stays warm or cool with ease, hardly can hear the rain on the roof, etc. What say you about the comparison? Does the 45OPP meet these?
--What are the R values in the Bus....floor, ceiling, walls, basement?
I love the layout of the Bus inside and out. Very practical sensible design. I've thought about when if able, I'd move up to a London Aire. But I keep going back to the Bus. Preferably I'd like to find one someday (used) with the 605hp option.
Thanks.

[jepeed]

My 2014 Allegro Bus had seamless slides 45LP

[Electra 225]

Oh, OK.....I thought it was relatively new design. Thank you.

[mrschwarz]

My 2017 45OPP has them, too.