The commencement of the Gigafactory construction in Mexico is a positive development for Tesla, indicating progress in its expansion strategy and potential for increased production capacity. This could lead to higher sales volumes and revenue growth, especially with the focus on lower-cost electric vehicles, which are likely to have a broad market appeal. The direct mention of the factory's objectives and the products it will produce, along with the expected start of production, underscores the significance of this development for Tesla's future growth prospects.