Honda horsepower figures show the 2027 season is already a bust for Fernando Alonso at Aston Martin

Fernando Alonso has confirmed he will remain with Aston Martin through 2027 alongside Lance Stroll, but significant performance deficits with their Honda power unit threaten their competitiveness. F1 Oversteer reports that alarming horsepower figures indicate Aston Martin faces severe challenges under the engine regulations, putting Alonso's prospects for contending at the front of the grid in jeopardy.

According to Spanish journalist Carlos Miquel, Aston Martin faces an estimated 70 horsepower deficit compared to Mercedes, losing roughly two seconds on long straights. Despite the FIA's ADUO mechanism offering development concessions to Honda, the team expects to stick with the power unit through 2027 as they work to close the gap.