Ultimate Test Drives… Cascadia 113 & Cummins-Wesport 1SX12G: Perfect Partners Pt. 2 While the ride and comfort of the Cascadia can hardly be overstated, the 113 BBC model is every bit as quiet, smooth and comfortable as its long-nose, over-the-road brother. It is supremely quiet in the cab, thanks in large part to the Natural Gas engine.
