NEW YORK — A handful of automakers reported Tuesday that their U.S. sales increased in October from a year ago, but the final tally won’t be in for another day. October sales are expected to come in slightly below 1 million vehicles, hitting around 12 million on a seasonally adjusted annual sales rate. Sales in October were uneven, coming in strong some days and really weak on others. Election day split the reporting of auto sales, with the larger automakers, including Ford Motor Co. and General Motors, expected to come out with their numbers Wednesday. Hyundai Motor America, the largest automaker to report Tuesday, said its US sales rose 38 percent last month to 42,656 vehicles from 31,005 the previous year.