Formula 1 cars have some excellent thermal efficiency, with even the best mainstream cars just scraping under their potential. But why is that?

Teams could cut the deficit to Mercedes via the FIA’s engine catch-up system, ‘Additional Development and Upgrade Opportunities'.

Toto Wolff says he would be “disappointed” if an FIA decision on ADUO were to affect the competitive order in Formula 1. In his view, only one manufacturer is truly in need of extra update opportuniti

F1 has a history of rivals demanding rules investigations into any dominant technology. The last time engine rules changed this much, Mercedes designed a near-unbeatable turbo hybrid but rarely used its full power. Under 2014 rules, teams could change the engine’s power output to balance speed with reliability.

The plan is for all rule changes to be implemented from Miami except for those concerning race start adjustments, which will be tested during the Florida race weekend. The push to

For Formula 1 teams that are down on power, the new ADUO process could be a lifeline: here's how the mid-season engine development exemption will work and what it takes for teams to qualify for it

The roar of a Formula 1 race car's V-10 engine used to thrill fans, but the V-10s went away over a decade ago. What killed them? And why do fans want them back?