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Sources

• Audi. "The 2008 Audi A8: Features and Specifications." http://www.audiusa.com/audi/us/en2/new_cars/Audi_A8/A8/Model_Features.html
• BMW. "Redefining the Speed of Light." http://www.bmw.com/com/en/newvehicles/mseries/m5/2007/allfacts/ ­ergonomics_ahc.html
• National Highway Traffic Safety Administration. "Fatality Analysis Reporting System." http://www-fars.nhtsa.dot.gov/Crashes/CrashesTime.aspx
• ­Opiela, Kenneth S. "Driving after dark: researchers at FHWA are striving to improve nighttime visibility, making roads safer for motorists and pedestrians." Public Roads, Jan-Feb, 2003­. http://findar­ticles.com/p/articles/mi_m3724/is_4_66/ai_97723968 ­
• ­­Smart Motorist. "History of Modern Lighting." http://www.smartmotorist.com/lig/lig.htm