Cadillac is among the many car manufacturers trying to create a championship-winning LMDh car. The rules for these new generation machines are quite flexible, allowing each company to come up with their own unique approach. Cadillac’s car stands out because it is the only one with a naturally-aspirated cross-plane crank V-8 engine. This design gives the car a loud and distinctive noise that is easily recognizable.
The American brand is proud of this feature and has released a new video on its YouTube channel showcasing the sound of the car, known as the V-Series.R. The video also delves into the reasons behind the engine’s unique sound and how it is put together. Cadillac’s V-8 engine, named the LMC55R, boasts a larger displacement compared to its competitors, coming in at 5.5 liters. This is more than double the size of the Acura ARX-06’s 2.4-liter turbocharged V-6 engine.
While the power output of all the engines is regulated to be similar when combined with a spec hybrid system, there are almost no restrictions on the engine’s configuration. This led Cadillac to opt for a distinct design. On the other hand, the starting mechanism of the cars is heavily regulated, with starter motors being prohibited. This means that the cars must rely on electric power and bump starting to get going. Cadillac’s car excels in this aspect, providing a unique and exciting soundtrack on the track.
Cadillac has put a lot of effort into promoting its car and its signature exhaust note. The brand has released multiple short videos highlighting the car’s performance, including a drag race against a Ferrari and a documentary on its successful debut at Le Mans in 2023. It is clear that Cadillac and General Motors are fully committed to the LMDh program, and hopefully, this dedication will result in more thrilling road cars for consumers to enjoy.