Additionally, Honda will be supplying trucks and support vehicles for the series again this year. Again, this is not surprising, as Honda is the sole engine supplier for IndyCar, and prepares and maintains the engines under their Honda Performance Development (HPD) subsidiary. The IndyCar Series will run on 100 percent ethanol fuel this year.
Changes to the vehicle are few, consisting mainly of safety requirements such as a roll-cage and high performance wheels and tires. Johnny Rutherford, the pace car driver for the year and past Indy 500 winner, says that no other changes are needed, "The available power and torque were both greater than I expected. The Hybrid is capable of performing everything that I ask of it on race weekends, and more."