** Shares of used-car retailer Carvana CVNA.N rise 2.4% to nearly $300 in premarket trading
** Board approved a 5-for-1 split of its common stock on Friday, marking first split for company
** Trading on a split-adjusted basis will begin at the market open on May 7
** Eighteen of 26 brokerages rate the stock "buy" or higher, 7 "hold" and one "sell"; their median PT before the stock split was $435
** As of last close, shares down 30.66% YTD
(Reporting by Aishwarya Jain in Bengaluru)
((Aishwarya.Jain@thomsonreuters.com;))