For Sale: Other: Monster Package Plus, Intense Interior, Extreme Exterior, Chrome Package Plus And Gallon Fresh Water Capacity Toy Haulers / Uxbridge, Ma 2015 Keystone Rv Fuzion 403 With Automotive Exterior Lines And Innovative Interior Patio Door The New Fuzion Is "more Than A Garage". Boasting A Stylish Modern Interior With Custom Furniture And Cabinetry The Fuzion Has A Look That Is Unparalleled. One Look At The Fuzion Is Enough To Get Your Heart Racing. Being The"hottest Brand In The Industry" Is A Fuzion Standard.