Saab's APC uses a knock sensor, ECU, and solenoid to modulate boost pressure and prevent detonation, allowing for more reliable and efficient turbo power.

Saab may be gone, but its heritage lives on ...

GM is certainly no stranger to the V8 engine, but interestingly, The General opted to shelve a lesser-known V8 engineering project from Saab after GM acquired a 50-percent stake in the company in 1989 ...

Justin Pritchard is a seasoned Sudbury, Ontario-based automotive journalist, producer, and technical writer. With a passion for cars and a talent for storytelling, he's established himself as a ...

With a Master's degree in English Literature and six years of writing experience, Aayush has been contributing to TopSpeed for over two years. Since 95% of his personality is motorcycles, he goes ...

Getting an engine compression test for your car is a bit like having your blood pressure taken. It sounds complicated without context, but it's a relatively straightforward and painless procedure that ...

Infiniti's new VC-T is groundbreaking in that it now offers an engine with a variable compression ratio, meaning it can be driven with fuel economy or horsepower in mind, giving the driver the option.

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 ...

The FIA have announced changes to Formula 1's power unit regulations, most notably surrounding compression ratio, which have caused controversy over the winter. When the 2026 power unit regulations ...

Formula 1 manufacturers have approved changes to the engine testing rules for 2026 following the compression ratio row that has lasted through the offseason. In December, it emerged that Mercedes had ...

Nissan issued two recalls, affecting a total of 642,698 Rogue compact SUVs, because of separate problems with the vehicles' gears and engines that can cause a loss of power, according to the National ...