Electric-vehicle prices are falling fast in the U.S., but the cheapest models remain far more costly than what other countries have on offer. The BYD Seagull sells for about $10,000 in China, the Dacia Spring starts at $20,000 in Europe, the Renault Kwid e-Tech costs $19,000 in Brazil, and the Kia Ray goes for $22,000 in South Korea.