A climate wind tunnel that opened March 27 in Shanghai is notable for several reasons, according to the joint venture behind it, PATAC. According to PATAC (Pan Asia Technical Automotive Center) JV partners General Motors and SAIC (Shanghai Automotive Industry Corp.), it is the first climate wind tunnel in China that can provide rain and snow simulations. Among others that are operating in China, PATAC's is the only one that has a wind-speed deviation of less than 1% and a maximum wind speed of 250 km/h (155 mph). In addition, it has the widest temperature simulation range of -40 to +60°C (-40 to +140°F) and the largest humidity simulation range (5 to 95%). The JV claims that it can replace about 80% of climate road tests.