General Motors (GM) announced on Wednesday its plan to shorten vehicle development cycles from the traditional four to five years to approximately two years, by expanding the use of artificial intelligence, simulation, and vehicle software. The company also reiterated its goal to achieve "personal autonomous driving" on highways by 2028, at which point drivers can divert their attention from the road. Furthermore, GM plans to launch a proprietary in-vehicle AI assistant through its OnStar brand in the coming months, and expects its next-generation electric vehicles to be more aerodynamically efficient, lighter, and equipped with more compact motors and battery packs.