The heir to the Agnelli business dynasty and a vice-president of Fiat Auto SpA, Lapo Elkann, was hospitalised in Turin recently for a drug overdose. Doctors affirm that the Fiat manager has suffered no brain damage. Elkann, 28, the grandson of the late Fiat patriarch Gianni Agnelli,heads Fiat’s Brand Promotion division. Three Fiat security guards stood watch on Tuesday outside the hospital building where Elkann is being treated. Police said he was suffering from the effects of a cocaine overdose.