When Lyft first launched in 2012, what was the original purpose of the giant pink mustaches that drivers attached to the front of their cars?

Ridesharing transformed urban transportation in the early 2010s, with Lyft emerging as a major player. Before becoming the sleek pink-themed service we know today, Lyft had a distinctive brand element that made their vehicles instantly recognizable on city streets. Test your knowledge about this famous transportation company's early branding strategy that helped differentiate it from competitors.

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They were designed as a safety feature to help riders identify certified Lyft vehicles from a distance
They were installed as air filters to reduce carbon emissions as part of Lyft's early environmental initiative
They were antenna extensions to boost the signal strength of Lyft's proprietary GPS tracking system
They were originally hood ornaments from a failed car manufacturing venture that Lyft's founders pivoted away from