Rumors have been circulating that Hyundai is developing a 10 speed automatic transmission for it'spremium cars. Hyundai has really been moving with transmission technology with 2 in-house transmission just recently introduced. The Sonata, Elantra, Accent, Azera, Santa Fe, Genesis, and Equus all come with Hyundai made transmissions. Most manufacturers out source their tranny manufacturing to focus on other R&D ventures. A 10 speed would be an industry leader for gears in a slush box. Here is an evolution of Hyundai transmissions starting at 4-speed to 8-speed.