Discussions about a potential return of V10 engines to Formula 1 have gained traction in recent weeks, with reports from Auto Motor und Sport suggesting that the idea is becoming increasingly serious. Initially, the 2026 regulations were set to retain hybrid V6 engines powered by carbon-neutral fuel, but growing concerns over their complexity and cost have led to alternative proposals.

One scenario being considered is delaying the new regulations by two years and introducing V10s in 2028, while another suggests implementing the 2026 rules as planned but reducing their lifespan from five years to three, allowing for an earlier switch to V10 engines.

The motivation behind these discussions stems from skepticism surrounding the new hybrid power units, which have proven challenging for manufacturers. A return to V10s is seen as a simpler, cheaper alternative that could also address concerns over the increasing weight of modern F1 cars.

However, delaying or canceling the 2026 regulations would have major implications. The German outlet notes that manufacturers like Audi, set to take over Sauber next season, have heavily invested in the new hybrid era and could reconsider their F1 involvement if the regulations are abandoned.

Similarly, Red Bull, which is developing its own power unit for 2026 in partnership with Ford, would find itself without an engine under the current rules. Mercedes has also expressed concerns that there wouldn’t be enough existing engines available to supply all teams if the regulations were postponed.

The proposal has also sparked political tensions, with some insiders believing FIA President Mohammed Ben Sulayem is pushing for V10s to benefit Cadillac, which plans to enter F1 with a Ferrari power unit before launching its own engine in 2028.

A shift to V10s would be ideal for the American brand, allowing them to enter the grid competitively before producing their own power unit under simpler, more affordable regulations. Critics argue that this move could be an attempt by the FIA to shield itself from blame if the 2026 regulations fail to deliver on their promises.

While the idea of returning to V10s excites many fans, the likelihood of completely scrapping the 2026 rules remains low. According to AMuS, discussions may be a negotiating tactic to explore a compromise, such as a shift to V8 engines with hybrid elements. With manufacturers, teams, and regulators divided, the future of F1’s engine regulations remains uncertain, but the conversation around V10s is now firmly on the table.