Road and Track recently put the 2015 Subaru WRX and the 2015 WRX STI through a battery of dyno tests to find out not only how much difference there is between their two engines, but what kind of ...

The 2025 BMW M5 has once again proven that BMW's official power figures are far from the full story. A recent dyno test ...

dynamometer cars were the essential tool to enable the testing of engines for features such as horsepower and speed. This particular dynamometer car also marked a significant advance in British ...

Before heading to Performance Eurowerks for some dyno action, the pictured sedan received a little over 15 gallons of 92-octane dino juice, which benefits the S68 twin-turbo V8 engine of the ...