The Heart of Racing team, competing in the famous 24 Hours of Le Mans endurance race in France, is raising money to support cardiology research at Seattle Children’s Hospital.

As the newest and least competitive car, the Valkyrie gets the biggest break, with a minimum weight of just 2,271 lbs (1,030 kg) and a maximum power of 697 hp (520 kW). The Toyota GR010—which won the race in 2021 and 2022—can also deploy 697 hp but at a minimum weight of 2,321 lbs (1,052 kg), more than any other car in the class.

Porsche, Toyota, BMW, Alpine and Cadillac are all contenders to dethrone the Prancing Horse on sports car racing's biggest day.

McLaren race cars will compete at this year's 24 Hours of Le Mans race, 30 years after the McLaren F1 GTR secured a famous debut victory in the iconic endurance race. The #59 car that won in 1995 was one of four McLaren F1 GTRs taking the top five positions.