The company launched the Roadster, a high$-$end sports car that demonstrated the potential of EVs in terms of performance and style. Tesla also invested in developing a proprietary charging network, the Supercharger, to address the range anxiety that was a barrier to EV adoption. The success of the Roadster generated revenue and technological expertise that were reinvested in developing the Model S$,$ a more affordable luxury sedan that achieved critical acclaim and commercial success.