Researchers developed and tested three different hybrid vehicle models to compare their performance with a regular car. They used computer simulations to predict how well each type of vehicle would drive and how much fuel they would use. The models included a hybrid fuel cell/battery vehicle and two hybrid ICE/battery vehicles. The results showed that the hybrid fuel cell/battery vehicle performed the best in terms of fuel efficiency, drivability, emissions, and overall efficiency. This suggests that this type of hybrid vehicle could be a good choice for future cars.