HPD-developed powertrain modifications tested on-track include a high-efficiency centrifugal supercharger; HPD air-to-air intercooler; high-flow fuel injectors; an ECU calibrated to meet CARB AT-PZEV
regulations with 91 octane fuel; HPD air filter system; and HPD sport exhaust.
It's just like any other Civic, except it's an AT-PZEV
, gets 49 miles per gallon (city) and 51 (highway), and has a range of 600 miles.
Fuel efficiency for the 2014 Honda Accord Plug-in Hybrid is expected to exceed 100 MPG-e, and it's also expected to receive an Enhanced AT-PZEV
rating from the California Air Resources Board (CARB).