Ford has announced plans to update the 2013 C-MAX Hybrid, Fusion Hybrid and Lincoln MKZ Hybrid to improve fuel efficiency.

The unusual move will see the cars equipped with a series of calibration updates that promise to improve fuel efficiency during short trips, highway travel and while using the climate control system.

Key changes an optimized Active Grille Shutter which will reduce drag under more driving conditions. The company will also make several changes to the climate control system to minimize use of the air conditioning compressor. Last but not least, the models will be able to be driven in pure-electric mode at speeds up to 85 mph (137 km/h) - an increase from the previous limit of 62 mph (100 km/h).

According to Raj Nair, Ford's group vice president of Global Product Development, " We are committed to continuously improving the fuel economy of our vehicles. We believe these actions will provide our customers enhanced on-road fuel economy satisfaction.”

Gallery: Ford announces plans to update the C-MAX, Fusion & Lincoln MKZ Hybrids

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