The International ProStar+ includes what Navistar calls "dramatically refined interior functionality." A re-engineered overhead console, for example, allows for easier reach and even includes an in-cab paper towel dispenser. Storage has been improved, with the Hi-Rise model seeing a 50% increase in total storage space.

The cab environment has also become quieter, by a claimed 9%. Other driver satisfaction improvements include a 20-lb force reduction in clutch feel for better driver comfort and less fatigue.

The newest ProStar also sports aerodynamic enhancements, including optional full-length chassis skirts for sleepers as well as a new cab-roof air fairing for day cab models. New powertrain features also improve fuel economy, including a clutched air compressor, variable-speed fan, low-viscosity engine oil, and fuel-efficient rear axle lubricant.

Navistar says the ProStar+ is 700 lb lighter than its predecessor. When you include the MaxxForce 13, it’s claimed to have an additional 600-lb advantage versus the leading 15-liter engine, providing an extra 1300 lb of added payload capacity.

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