Things change when you need to tow. Pulling a 6,000-lb load – roughly 50 percent of what our truck is rated to pull – the HEMI power feels underwhelming. Hills leave it wheezing hard and that is where the tradeoff between cash and power becomes clear. Even if it doesn’t feel the best in its segment, the Cummins doesn’t feel underpowered like the gasoline V8 does.