Trucking veteran Dywana Miller has nothing but good things to say about her 2013 Kenworth T660 featured here. Miller, who has 43 years on the road, said the truck is "one of the best-running ...

That said, Kenworth has introduced the Class 8 T660 Aerocab Aerodyne as its aerodynamic – hence, fuel-efficient – flagship. Ask anyone who’s running one (or several), and you be the judge.

Kenworth is one of the oldest truck manufacturers in the United States. Today it has 14 different models with one that's been produced since the 1960s.

“The new Kenworth T660, Kenworth Clean Power no-idle system and medium-duty hybrid trucks have set the industry standard for enhanced performance and improved customer profitability.” ...

Kenworth aimed for a 100% freight efficiency improvement over the 2009 T660 semi-truck, yet instead improved efficiency by up to 136% ...

Customers and trucking reporters converged on the Paccar Innovation Center in Silicon Valley this week to experience Kenworth’s battery-electric and fuel-cell-electric commercial trucks.

Semi trucks doing tons of miles is a pretty par for the course, but this 30-year-old Kenworth has been going for over 4 million miles. How is that possible?