This uncoverable vehicle is of the type including, at least, a windscreen (5), a sliding roof, and two front seats (3, 4); it also includes a wind deflector in the form of a panel (6) fitted with a front rim (7) and a rear rim (8), which panel (6) extends from the trailing edge of the windscreen (5), on the whole width thereof. The deflecting panel (6) is fitted, in its medial portion intended to be situated between both front seats (3, 4), with intrinsic elements (12) laid out to deviate an air flux to the inside of the passenger space, in order to oppose the formation of turbulent recirculations.