Whichever one has the more powerful drivetrain setup. I mean, you take a Kenworth and a Peterbilt, give them the same engine, transmission, rear end gears, and tires, you're not going to notice any power difference.
Peterbilt, Kenworth, Frieghtliner, Volvo, & Mack
That depends on the specifications of the truck itself. A European truck built to haul heavy equipment loads is going to be built stronger than a Peterbilt designed to haul conventional freight, just as a Peterbilt built for heavy equipment loads will be stronger than a Scania, MAN, etc. designed to haul conventional freight.
Peterbilt never made the T600. The T600 was built by Kenworth, and it ended production in 2007, at which point it was replaced in production by the T660.
PACCAR builds Peterbilt and Kenworth
No
Freightliner, Peterbilt, Kenworth, Mack, Volvo, Navistar International.
The peterbilt is the most popular truck for most drivers followed up by the Kenworth. International freightliner Volvo and Mack round out the rest.
The truck auctions feature medium-duty and heavy-duty trucks, as well as trailers. They include trucks manufactured by Peterbilt, Kenworth, Mack, Freightliner, International, and Volvo.
They have a mixed fleet.. currently, I see Kenworth and Peterbilt trucks in their fleet. In the past, I've seen Freightliner and Navistar (International) trucks in use by them.
PACCAR, Inc. On top of Kenworth, they also own Peterbilt, and a Dutch lorry manufacturer known as DAF.
You can order it from any Peterbilt dealership... it's possible a Kenworth dealership could get it, as well.
Overall, a Western star truck is a tougher truck than a Peterbilt.