Formula 1 teams are testing in Bahrain this week, but a storm is brewing in the background that might turn the season on its head. A rule change could be introduced to rein in the Mercedes power units ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

‘It’s a big difference’ — Collins questions whether the FIA test reflects real engine heat.

Hamilton addresses rumors of Mercedes’ technical advantage after day one of preseason Bahrain testing. Concerns raised about Mercedes’ fuel loads, engine modes, and possible compression ratio edge.

When comparing engine specs for nearly any combustion engine automobile, we see a number of variations available with differing outputs of horsepower and torque. We often have a choice of gasoline or ...