Constructing electric vehicle charging piles (EVCPs) is crucial for promoting electric vehicle (EV) sales. Yet, empirical evidence on the bidirectional relationship between EV sales and public EVCPs is limited, with most related works relying on simulations. We empirically investigate this relationship using panel vector autoregression (PVAR) across 95 Chinese cities from 2018 to 2022. Results show EVCPs significantly boost EV sales, especially in colder regions. Higher air pollution and purchase subsidies inhibit the promoting impact of EV sales on EVCPs. The propelling effect of EVCPs on EV sales is impaired in higher housing prices regions. A significant and positive bidirectional relationship exists between EVCPs and battery electric vehicles (BEVs) sales exists, but not with plug-in hybrid electric vehicles (PHEVs) present. Our findings have implications for stakeholders, such as the construction of fast charging infrastructure under lower temperatures, and differentiated charging demands of EVs with different powertrains need to be addressed.
