Formula One could see a return to the roaring sound of V8 engines fueled by fully sustainable sources as early as 2029, according to FIA President Mohammed Ben Sulayem.
While the sport is gearing up for a new engine era next season, the governing body's chief hinted in February at a potential comeback for naturally-aspirated V8s or V10s in the future.
The V8 engines were last heard on the track in 2013, before the introduction of the current 1.6-liter V6 units.
"The current engine is incredibly complex and expensive," Ben Sulayem told reporters at the British Grand Prix.
"Research and development is reaching staggering figures, and the engine itself costs millions. A move to a straightforward V8 could change this."
He further emphasized the commercial appeal, stating that "Many manufacturers produce V8s in their cars, so commercially it's correct... The target is more than 50% in everything."
Ben Sulayem highlighted the potential weight reduction associated with V8 engines and the positive reception the familiar sound would receive from both long-time fans and newcomers.
"To us, the V8 is happening... FOM are supportive, the teams are realising it is the right way," he added.
He also cautioned that "You need three years, so hopefully by 2029 we have something there, but the fuel is also very expensive, and we have to be very careful with that. Transmissions are very expensive."
Ben Sulayem also addressed the possibility of a Chinese team joining the grid, reiterating his belief that Formula One needs more teams, not just more races.
"The time will come when we feel it is right to open an expression of interest," he said, regarding the potential 12th team.
"We are not here to upset other teams... It has to be worth it for us. The team has to add value to sustaining the business of Formula One."
General Motors' Cadillac brand is set to become the 11th team next season, securing its place after overcoming initial resistance.
Older articles