In an effort to give Mack Trucks’ vocational customers improved durability and broader options for their applications, Mack is now offering a 23,000-pound rear axle and Cummins B6.7 engine with ...

Trust Porsche to turn electrification on its ear for the newest 91… It’s a hybrid Jim – but not as you know it.

Martin Barraud / Getty Images Fixed costs, variable costs, and total costs all sound similar, but there are significant differences among the three. The main difference is that fixed costs do not ...

Higher pressure angles also increase the force that tries to push the gears apart, and hence the load on the gear axles. The current standard pressure angle is 20 degrees. It replaces an old 14.5 ...

We drove the new Porsche 911 Carrera GTS T-Hybrid on the street and the track to see what the hybrid is about. Here's what ...

Porsche has been making refined high-performance sports cars since the 1940s. Here are some of the highest-horsepower models ...

SRAM’s new Eagle 90 Transmission is the long hoped for cable controlled version of wireless AXS T-Type – that means it’s for ...

We go wheeling in the Frontier and Armada Pro-4X off-road packages to see where they fit along the FX4-Z71-TRD Pro-ZR2-Raptor ...

What Honda just did, by hanging three 2026 Passports from each other, with a crane, has been done before. Usually for car ads ...

The most basic version of the Gobanna 1200 comes with an eye-catching exterior that recalls the days of retro glamping but is reserved for hardcore adventurers ...

An online community for late model GM V8 engine performance enthusiasts. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a ...