Exceptional sound insulation (sound absorption/insulation, etc.) prevents road noise from entering the vehicle cabin for a more comfortable interior space.
Tonneau covers are used in the cargo space of SUVs, station wagons and other vehicles.
Package trays are behind the rear seats of a sedan.
Electric sunshade systems
Electric sunshade systems prevent sunlight entering from the side and protect privacy in rear seats.
Silencers prevent engine noise from infiltrating the cabin from the engine room.