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

All 11 teams were able to put their all-new cars through their paces at the Bahrain International Circuit for three days ...

Ferrari, Honda, Audi and now also Red Bull have raised concerns with the FIA that Mercedes can increase their rate of compression from the allowed 16:1 ratio to 18:1 during operation. Mercedes believe ...

Ferrari wants clarity regarding the Mercedes engine compression ratio saga, with an Australian GP protest ruled out.

The first week of testing is done and dusted in Bahrain, but there is still plenty to unpack after the three days. Follow GPblog's daily liveblog to keep up to date with all the latest and breaking ...

Formula 1s big four of McLaren, Mercedes, Red Bull and Ferrari appear to be at the front again, but in which order? Watch ...

BBC Sport F1 correspondent Andrew Benson assesses what we learnt - and what we didn't - from the first pre-season test in ...

The FIA is up against a major logistical hurdle ahead of the Australian Grand Prix, with experts suggesting that mandated changes to Mercedes’ engine compression ratios might not be feasible before ...

Max Verstappen has accused Toto Wolff of "diversion tactics" after the Mercedes team boss talked up the performance of Red Bull's new car and power unit during this week's preseason test in Bahrain.

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 ...

Gasoline engines operate on the Otto cycle, relying on standard four- or two-stroke combustion. What is the Atkinson cycle, ...