Tesla's Semi truck program took a significant step toward wider commercial adoption as Keller Logistics Group, a 300-truck fleet operator, completed a key pre-production planning session to evaluate the electric truck for its regional routes. This move signals growing confidence from the logistics industry in the Semi's capabilities for real-world applications and is a crucial development for one of Tesla's key future products. This news comes as Tesla's stock continued a rally, reportedly fueled by optimism around its Optimus robot project and strong wholesale sales figures from China. However, other reports on the same day highlighted contrasting data, with Tesla's U.S. deliveries in November hitting a yearly low, signaling potential demand softness in its primary market even as global Q3 deliveries remained strong.