Formula 1's new era was always going to bring questions, but its first week of serious running has raised more than most.

With the first Bahrain test in the bag, it's time to pore through the grid and pick our list of Winners and Losers.

The Ferrari driver says rumours of “extra power” must be addressed before Melbourne as rivals push for clarity on 2026 rules ...

Motorsports journalist Rob Peeters explains the Formula 1 compression ratio controversy, how IndyCar secured its engine contracts and previews the Daytona 500.

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 ...

F1’s 2026 rules set a 16:1 compression ratio limit for engine cylinders. This caps how much the engine can squeeze fuel ...

The crux of the matter lies in that the Formula 1 compression ratio is not measured by sensors during engine operation, but statically. The FIA simply compares the ratio in volume in the cylinder ...

Red Bull and the additional power unit manufacturers aim to create a vote to ban Mercedes' engine, but the impression from ...

Mercedes could come out on the losing side of a critical vote regarding the engine regulations as other power manufacturers ...

Williams team boss James Vowles has emerged as Mercedes’ most vocal defender as controversy swirls around the manufacturer’s ...

The higher the ratio (in F1's specific case, 18:1 vs 16:1), the more the fuel and air inside the cylinder is compressed – to 1/18th of its original volume, or 1/16th (other compression ratios are ...