Does anyone know which 2010 car models do not use Electronic throttle control (ETC) to control acceleration?

Don't take that too seriously. Drive-by-wire systems have been around for more that a decade with hardly ever causing problems. If you check the car recall history, you'll find much scarier examples of safety-related flaws and information mismanagement. Electronic systems are here to stay and they help make our cars more reliable and motoring a safer and more enjoyable experience.