Online used-car retailer Carvana posted a record second quarter as more Americans turned to affordable used vehicles instead of buying new. The numbersCarvana sold nearly 200,000 vehicles during the quarter, a roughly 40% increase from a year earlier. CarEdge reported new-car prices have climbed 3.4% over the past year. The Wall Street Journal reported roughly one million consumers have exited the new-car market because prices remain so high. Despite the strong quarter, investors were less enthusiastic.