2015 Newmar Ventana 4002, The true diesel you truly deserve. The 2015 Ventana diesel coach is your ticket to the kind of quality, comfort and craftsmanship that only a Newmar diesel coach can offer. Experience the breathtaking power you ve long desired, thanks to a 400HP Cummins® ISL engine, available in select Ventana models. And of course, Ventana s Freightliner Custom Chassis delivers the buttery-smooth ride and responsive handling you expect from Newmar.