US STOCKS-Futures dip after Dow, S&P records and Nasdaq 5,000
* Auto sales expected throughout session
* Best Buy climbs in premarket after results
* Citigroup to sell OneMain Financial to Springleaf Holdings
* Futures off: Dow 17 pts, S&P 2.75 pts, Nasdaq 3.75 pts
By Chuck Mikolajczak
NEW YORK, March 3 (Reuters) - U.S. stock index futures edged lower on Tuesday, after the Dow and S&P marched to new record highs and the Nasdaq topped the 5,000 mark for the first time in 15 years.
* The Nasdaq notched its first close above the milestone 5,000 mark since March 10, 2000, buoyed by a flurry of merger activity, for only the third close above that level in the history of the index. The Dow and S&P closed at their latest records as economic data pointed to a slowly improving economy.
* Investors will look to monthly auto sales data throughout the session for signs on the health of the U.S. economy and the appetite of consumer spending. Fiat Chrysler Automobiles's CEO said Volkswagen is not the ideal candidate for a merger, adding he was exploring various M&A options.
* Electronics retailer Best Buy climbed 4.8 percent to $40.50 in premarket trade after it reported quarterly results, announced a special dividend and the resumption of its share repurchase plan. Continuación...