Carvana tumbled prior to the stock market open on Thursday after missing some fourth-quarter estimates on higher costs late Wednesday. Carvana on Wednesday reported that Q4 earnings grew 463% to $4.22 per share with revenue totaling $5.65 billion, up 59% vs. a year ago. Prior to the earnings release, analysts projected quarterly EPS of $1.14 and sales coming in at $5.27 billion, according to FactSet.