Autonomous-vehicle road testing has skidded to a halt in the U.S. amid the Covid-19 pandemic. But China’s startups have pushed ahead by more than doubling the number of self-driving car projects, with a boost from the country’s 5G network. Photo: Lorenz Huber for The Wall Street Journal BEIJING—China’s car market recorded its first quarter of year-over-year sales growth in two years as a broad economic recovery bolstered consumer confidence and discounts boosted demand, especially for electric vehicles. Retail passenger-car sales in the country increased by 7.9% in the three months ended September 30 compared with a year earlier, the China Passenger Car Association said Tuesday. For just the month of September, sales increased by 7.3% from last year, reaching 1.91 million vehicles, the Beijing-based body said. The strong quarter, the industry’s first in two years, has raised hopes for a more sustained rebound through the end of the year […]