The IMSA SportsCar Championship underwent a profound shift with its adoption of new rules for 2023.
Teams now had a spec hybrid system to optimise, while the move from DPi to LMDh (known Stateside as GTP) also meant a new philosophy for calculating energy usage – falling in line with the World Endurance Championship, allowing for the platform to be equalised against Le Mans Hypercars.
The consequence of stretching a tank of fuel too far is unchanged. But no longer is stint length dictated entirely by fuel numbers. Instead, the primary
