 Shares of CarGurus Inc. CARG, 4.03 rallied more than 10 in the extended session Thursday after the online car marketplace reported adjusted earnings and sales well above Wall Street expectations and guided for a much better current-quarter sales than analysts estimate. CarGurus said it lost 80 million, or 68 cents a share, during the quarter, contrasting with earnings of 25 million, or 22 cents a share, in the year-ago quarter. 