 The low @-@ emission package standard available on later 2012 Volts destined for the California market is included in the 2013 Volts sold in New York state to allow their owners access to high @-@ occupancy lanes . The liftgate and roof of the 2013 model is body @-@ colored rather than black , and a new interior color " Pebble Beige " is available in both cloth upholstery and leather seats with suede inserts . A removable rear @-@ seat center armrest is included in the premium trim package . Other changes include an improved audio system with GPS @-@ based navigation ; a comfort package that includes heated driver and front passenger cloth seats and leather @-@ wrapped steering wheel ; and there are a pair of available safety packages . 
