A roof module for a motor vehicle comprises an RTM frame and a Class-A covering layer, which at least partially covers the frame and is made of polyurethane. A method for manufacturing a roof module comprises the following steps: Initially, a fiber mat is put into a first mold. Then, a reactive resin system is introduced into the closed mold and the resin cures, so that a blank is formed. The blank is put into a second mold, into which subsequently polyurethane is introduced in the open condition. The polyurethane expands, wherein it at least partially forms a Class-A surface.

A roof module for a motor vehicle comprises an RTM frame and a Class-A covering layer, which at least partially covers the frame and is made of polyurethane. A method for manufacturing a roof module comprises the following steps: Initially, a fiber mat is put into a first mold. Then, a reactive resin system is introduced into the closed mold and the resin cures, so that a blank is formed. The blank is put into a second mold, into which subsequently polyurethane is introduced in the open condition. The polyurethane expands, wherein it at least partially forms a Class-A surface.

A vehicle upper structure reduces noise in a cabin by preventing vibration of a roof panel while avoiding an increase in manufacturing cost and an increase in vehicle weight. A vehicle includes a roof panel, a front header, a ceiling, and a vibration damping member. The front header extends in a vehicle width direction on an inner side of the cabin from the roof panel. The ceiling covers the roof panel from the inner side of the cabin. The vibration damping member is fixed to an upper surface of the ceiling. The vibration damping member is arranged between a sun visor fixed portion and a gusset fixed portion in the vehicle width direction and near the front header. The vibration damping member has at least two resonance frequencies and is configured such that one resonance frequency thereof is substantially the same as a resonance frequency of the ceiling.

A vehicle upper structure reduces noise in a cabin by preventing vibration of a roof panel while avoiding an increase in manufacturing cost and an increase in vehicle weight. A vehicle includes a roof panel, a front header, a ceiling, and a vibration damping member. The front header extends in a vehicle width direction on an inner side of the cabin from the roof panel. The ceiling covers the roof panel from the inner side of the cabin. The vibration damping member is fixed to an upper surface of the ceiling. The vibration damping member is arranged between a sun visor fixed portion and a gusset fixed portion in the vehicle width direction and near the front header. The vibration damping member has at least two resonance frequencies and is configured such that one resonance frequency thereof is substantially the same as a resonance frequency of the ceiling.

A roof for a vehicle upper body structure includes a body extending between a first side and a second side, and between a front end and a back end. The front end is configured to be coupled to a header. The body includes a polymer and a plurality of fibers. At least a portion of the body has a transparency of greater than 0% to less than or equal to about 20%. A header for a vehicle upper body structure includes an elongated body extending between a first side and a second side, a front end that is configured to be coupled to a windshield, and a back end that is configured to be coupled to a roof. The body includes a polymer and a plurality of fibers. At least a portion of the body has a transparency of greater than 0% to less than or equal to about 20%.

A roof for a vehicle upper body structure includes a body extending between a first side and a second side, and between a front end and a back end. The front end is configured to be coupled to a header. The body includes a polymer and a plurality of fibers. At least a portion of the body has a transparency of greater than 0% to less than or equal to about 20%. A header for a vehicle upper body structure includes an elongated body extending between a first side and a second side, a front end that is configured to be coupled to a windshield, and a back end that is configured to be coupled to a roof. The body includes a polymer and a plurality of fibers. At least a portion of the body has a transparency of greater than 0% to less than or equal to about 20%.

A vehicle having a floor, first and second lateral side body structures, a roof, a rear wall, and a bulkhead. The rear wall extends from the roof and cooperates with the floor to at least partially define an opening. The bulkhead may be moveable in a longitudinal direction of the vehicle.

A vehicle having a floor, first and second lateral side body structures, a roof, a rear wall, and a bulkhead. The rear wall extends from the roof and cooperates with the floor to at least partially define an opening. The bulkhead may be moveable in a longitudinal direction of the vehicle.

A vehicle body structure having a side roof rail, a B-pillar and a bracket. The side roof rail has an inboard surface. The B-pillar has an upper end portion that overlays a portion of the inboard surface of the roof rail. The B-pillar extends downward from the roof rail. The bracket has a first portion and a second portion. The first portion is fixedly attached to the upper end portion of the B-pillar. The bracket further has a first rib and a second rib spaced apart from the first rib. The first rib and the second rib extend from the first portion of the bracket upward toward the second portion of the bracket. The first portion of the bracket further defines a slot located between the first rib and the second rib.

A vehicle body structure having a side roof rail, a B-pillar and a bracket. The side roof rail has an inboard surface. The B-pillar has an upper end portion that overlays a portion of the inboard surface of the roof rail. The B-pillar extends downward from the roof rail. The bracket has a first portion and a second portion. The first portion is fixedly attached to the upper end portion of the B-pillar. The bracket further has a first rib and a second rib spaced apart from the first rib. The first rib and the second rib extend from the first portion of the bracket upward toward the second portion of the bracket. The first portion of the bracket further defines a slot located between the first rib and the second rib.