Fast car
(Warning: plot and story discussed in explicit detail)
Michael Mann's Ferrari continues his tradition of depicting work-obsessed introverted men but with a key difference: Enzo Ferrari was reportedly more gregarious till the death of his son Dino at the age of 24 from muscular dystrophy. Mann doesn't make the obvious connection, just shows the aftereffects: Enzo depressed and focused on his beloved racing cars with a singleminded ferocity.