Motor vehicle provided with a powertrain unit and a safety device for moving the powertrain unit sideways during an impact

A motor vehicle comprising:

• a front engine compartment;
• a powertrain unit accommodated in said engine compartment;
• at least one longitudinal strut accommodated in said engine compartment, substantially parallel to an advancing longitudinal axis of the motor vehicle and comprising:
• a) an end portion which is longitudinally distanced from a passenger compartment of the motor vehicle;
• and
• b) an intermediate portion having a hole;
• a safety device coupled to said longitudinal strut and configured so as to move said powertrain unit sideways during an impact, towards the side opposite to the one concerned by said impact;
• characterized in that said safety device comprises:
• a beam elongated along an axis and having a first axial end fixed with respect to said end portion and spaced sideways from said terminal portion towards the outside of said engine compartment, and a second axial end fixed by means of fixing means to said intermediate portion in a position which is horizontally beside said powertrain unit;
• and
• a restraining member comprising:
• a) an attachment portion fixed to said intermediate portion;
• and
• b) a protruding portion, which protrudes with respect to said attachment portion so as to be arranged behind a wall of said beam, said protruding portion having a semi-spherical shape.