Navistar International, a producer of International brand commercial trucks, proprietary diesel engines, and IC Bus brand school and commercial buses, agreed to acquire a minority stake in TuSimple, a self-driving technology company. Financial terms were not disclosed. "We are honored to be partnered with Navistar. The investment in TuSimple and the partnership with Navistar marks an important milestone for our company. With the combined expertise of Navistar and TuSimple, we have a clear path to commercialize self-driving Class 8 trucks at scale." Cheng Lu, TuSimple President.