Cadillac’s V-LMDh, officially known as the V-Series.R, begins each run in near silence, adhering to LMDh regulations that mandate the use of a hybrid starting system instead of a traditional starter motor. It rolls out of the pit lane powered solely by its electric motor, smoothly accelerating until it reaches the threshold where the combustion engine can engage. At that point, the car bump-starts its custom-built 5.5-liter naturally aspirated V8 engine, codenamed the LMC55R. Once ignited, the V