in November 2014. The nickel-metal hydride batteries used in the hybrid first generation were replaced with lithium-ion batteries. The 2013 model year Fusion Hybrid is more fuel efficient than its predecessor, with a US Environmental Protection Agency (EPA) rating of combined, in city and in highway driving. Initially, the second generation Fusion Hybrid was rated with the same rating for combined/city/highway cycles. However, in June 2014 Ford announced that it was downgrading the EPA fuel economy ratings on six of its 2013 and 2014 model year vehicles, including all its C-Max, Fusion and MKZ full hybrids and its two plug-in Energi models. The ratings were lowered after an error was discovered in the company's internal testing data. Ford is making a goodwill payments to around 200,000 customers affected by its mistake. After the ratings were lowered the 2013/14 Fusion Hybrid still slightly outperforms the 2012/2014 Toyota Camry Hybrid LE by 1 mpg-US city and 2 mpg-US highway, and the Camry XLE by 4 mpg-US city and 3 mpg-US highway. The second generation hybrid has a powertrain with a 2.0-liter Atkinson-cycle inline-four – downsized from the 2.5-liter unit used in the first generation Fusion Hybrid. Total output is estimated at and , running to the front wheels via an electronically controlled continuously variable transmission. The lithium-ion battery pack saves weight and generates more power than previous NiMH batteries, and allows the second generation Fusion Hybrid to raise its maximum speed under electric-only power from . The 2013 Fusion Hybrid includes driver assistance and technologies based on sensors, cameras and radar that enable the car to see and respond. Fusion can help drivers maintain proper lane position (Lane Keeping System); adjust vehicle speed to changing traffic conditions through adaptive cruise control; active park assist to help identify suitable parking spaces and help park; and Blind Spot Information System (BLIS) with cross-traffic alert, which consists of sensors in both rear quarter-panels that are able to detect traffic in a driver's blind spot, providing both audible and visual warnings if traffic unseen by the driver is detected. BLIS technology enables cross-traffic alert, even aiding drivers backing out of parking space where visibility is obstructed. Lincoln MKZ Hybrid During the 2012 North American International Auto Show Ford also unveiled the Lincoln MKZ concept model. Ford offers a hybrid option of the redesigned 2013 Lincoln MKZ, and like the previous MKZ generation, the MKZ Hybrid is