** Shares of used-car retailer CarMax KMX.N fall nearly 8.2% to about $37.7 premarket
** KMX reports drop in Q3 revenue and profit, hurt by weaker demand and falling prices of used vehicles in the U.S.
** Posts Q3 earnings per diluted share of 43 cents, versus 81 cents a year ago
** Reports Q3 revenue of $5.79 bln, compared with $6.22 bln a year ago
** On track to cut at least $150 mln in selling, general and administrative costs by end of FY27 - KMX
** As of last close, shares down 49.8% YTD
(Reporting by Megavarshini G. Somasundaram in Bengaluru)
((Megavarshini.SomasundaramGnanasundari@thomsonreuters.com))