Updates with details, share movement and background Aug 4 (Reuters) - Nikola Corp NKLA.O exceeded market estimates for quarterly revenue on Thursday as the electric-vehicle maker delivered more semi trucks after a production ramp-up, sending its shares 6% higher in trading before the bell. The company produced 50 Tre battery electric vehicles at its facility in Coolidge, Arizona, in the April-June quarter and delivered 48 units to dealers. Electric-vehicle companies have been grappling with higher costs this year as the Russia-Ukraine war and rising inflation drive up prices of battery materials and other components.