In most markets outside South Korea and North America, the Hyundai Tucson name (also known as the "Hyundai Tucson ix" in Korea) was retired in favor of Hyundai ix35.[16][17] Vehicles sold in the North America and several other regions continued to be called Tucson.[18] The ix35 was unveiled at the 2009 Frankfurt Motor Show.[19] The power output, fuel-efficiency, comfort and safety features was claimed to have been all upgraded.