With today’s high fuel costs, the case can be made that more horsepower is more luxury. We favor luxury through power. So, the 2008 Mercedes ML550 and GL550 SUVs, with larger, 5.5-liter engines ...

Behold the Gunbus, a motorcycle that takes the idea "there's no replacement for displacement" to absurd heights by cramming a 410-cubic inch V-twin engine into a cruiser that makes the wildest bikes ...

Engine builder Ken Duttweiler(right)and Dave Halderman are plenty pleased with the 2 horsepower-per-cubic-inch performance of their single 4-barrel Buick V6. Duttweiler found that torque readings and ...