It doesn't sound supercharged or turbocharged.
Earlier this year, Toyota won the 90th 24 Hours of Le Mans. Toyota has now won five Le Mans in a row, which means it's officially tied with Ford and just two wins behind the all-time great, Porsche.
We don't want to take anything away from Toyota, but it has been racing itself for the last few years. Manufacturers kept pulling out of the LMP1 and LMP2 categories, making the racing dull and predictable.
But like F1, endurance racing is on the verge of becoming more accessible to manufacturers thanks to the new LMDh regulations. The new LMDh (Le Mans Daytona hybrid) has made it easier for manufacturers like Cadillac to join.
Next year the field will look quite different, as a few other manufacturer teams are joining the grid. One of the most highly anticipated racing cars in attendance will be the Cadillac Project GTP, which you can listen to above in a tweet shared by Caddy.
The development of this car is progressing rapidly, considering Cadillac only made the official announcement in August last year. It was introduced to the world in June and has since completed its first few laps around a track.
According to Cadillac, we'll be hearing more of the engine soon, but we know it won't be the supercharged 6.2-liter V8 out of the CT5-V Blackwing. Cadillac already stated that it will have a 5.5-liter V8 and the required hybrid system to race in the LMDh class, but nothing more.
The car doesn't sound turbocharged or supercharged. It sounds like a cross-plane crank, not a flat-plane like the Corvette Z06 and C8.R. You can hear it even more clearly from recent spy footage of the car going around Sebring.
A cross-plane NA V8 with a hybrid component makes sense, even though all its rivals are running twin-turbo engines. Endurance racing is more about reliability than outright speed, as Ford found out when it went up against Ferrari the first two times. If this is the case, Cadillac's racing car will be remarkably simple compared to the rest of the pack, which isn't necessarily bad.
For the record, Cadillac will be competing against Acura, BMW, and Porsche in 2023, while Alpine and Lamborghini are scheduled to join the grid in 2024.