Wednesday’s report from the Labor Department showed sharply higher prices for everything from food and clothes to housing. A 10% surge in the prices of used cars and trucks — a record jump — accounted for roughly one-third of last month’s overall increases. The cost of new cars was up 0.5%, the largest increase since last July. Prices for vehicles, both used and new, have been soaring as a result of heavy demand and a computer chip shortage that has slowed auto production and reduced dealer supplies. Over the past 12 months, consumer prices have jumped 4.2% — the fastest...