 The series said rules for the hybrid system will limit the amount of energy deployed per lap and is based on track length. Now, remember I said 550 to 700 horsepower for the non-hybrids? The added power from the hybrid system will add an extra 120 horsepower. So race cars will have over 800 horsepower for the first time in 20 years out of a 2.2 liter hybrid.