The facelifted CR-Z gets an updated version of its 1.5 SOHC i-VTEC engine, which now produces 119bhp thanks to changes to the variable valve timing system and ECU.
A further 20bhp comes from updates to the electric motor, notably moving from a nickel-metal hybrid battery to lithium ion. The revisions raise combined peak power to 135bhp and 140lb ft.
The car now accelerates from 0-62mph in 9.0sec (0.7sec less than the current model) and its top speed is now 124mph. Claimed fuel consumption is 56.5mpg with emissions unchanged at 116g/km.
Honda has also added a Plus Sport boost system. Provided the battery has more than 50 per cent charge, this mode delivers increased acceleration for up to ten seconds when the button on the steering wheel is pressed. The boost can be used in ECON, Normal or Sport modes.
The 2013 CR-Z features new front and rear bumper designs, 17-inch alloy wheels and new door casings which improve cabin storage. Two new paint colours, Energetic Yellow and Aurora Violet, will be available for the facelifted CR-Z.