Sonata Hybrid the First Full Hybrid Electric Vehicle from Hyundai

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Alternative Fuel Vehicles (AFVs) and Hybrid Electric Vehicles (HEVs): Trend of sales by HEV models from 1999-2009. Alternative Fuels and Advanced Vehicles Data Center (U.S. DoE)

Yong-Seok Kim, et al.: Development of Hyundai/Kia’s LPI Hybrid Electric Vehicles. In: ATZautotechnology 1-2009, pp. 18-25

Sherry Boschert: Plug-in Hybrids: The Cars that will Recharge America. In: New Society Publishers, 2006, pp. 30-32

Sonata Hybrid Technical Release Final. Hyundai Motor America, 2010