** Milan-listed shares in Stellantis STLAM.MI slip around 3% after December car sales drop
** The carmaker has significantly underperformed, says Equita, with December volumes declining 18% year-on-year to 25,000 units
** While the group's decrease in volumes was expected, the performance in North America in the Q4 and the magnitude of the negative price effect carrying into 2025 remain to be seen, according to Equita
** The stock is among top losers on Europe-wide STOXX 600 .STOXX index
(Reporting by Michela Stasio)
((Michela.stasio@thomsonreuters.it))