What unique marketing strategy did Tesla use during the 2017 unveiling of its Semi electric truck that broke industry norms for commercial vehicle launches?

Tesla's entry into the commercial transportation sector marked a significant shift in the industry's approach to sustainability and innovation. The Tesla Semi launch was one of the most anticipated product releases in the transportation industry, promising to revolutionize long-haul trucking with electric power. Test your knowledge about this game-changing product launch that challenged conventional logistics and transportation models.

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They allowed the truck to be test-driven by randomly selected attendees at the launch event
They revealed that the truck had already been secretly operating in commercial fleets for six months
They unveiled a surprise second product (the Roadster) that emerged from inside the Semi's trailer
They announced immediate availability with zero waiting period, breaking the pre-order model