Overview

• The 2026 F1 power unit regulations currently mandate a 50-50 split between internal combustion and electric power, with 350 kW of electric output.
• Christian Horner is advocating for a shift to a 60-40 ICE/electric ratio, citing simulations that highlight potential battery depletion on long straights like Monza.
• Toto Wolff, initially dismissive of late rule changes, has softened his stance and expressed willingness to consider adjustments if necessary for race quality.
• Manufacturers such as Honda, Audi, and Porsche remain committed to the existing 50-50 regulations, emphasizing the importance of stability for their development programs.
• Ford's Mark Rushbrook echoed Horner's observation that Mercedes appears confident in its 2026 power unit development, though overall competitiveness remains uncertain until testing begins.