Arabic to English Tech/Engineering Automotive / Cars & Trucks

A key element in this design is the single horizontal plane formed by the top of the centre tunnel and the front and rear frame rails; since they are all set at the same height, they provide immense rigidity. The result is a body offering torsional rigidity equivalent to that of a closed one and a level of bending rigidity far superior to either open or closed conventional bodies.

السلام عليكم:
لقد وجدت تعريفا لهذا المصطلح وهو كالتالي:
The hump which runs from front to rear between the left and right passenger (i.e., driver and passenger). It often accommodates the transmission and/or drive shaft. In front wheel drive vehicles it covers the wiring leading to the rear of the vehicle.

فهل يوجد له اسم خاص به في مصطلحات السيارات، وهل سمعتم من قبل عن مصطلح "الحلة"
الذي يستخدم للإشارة إلى معنى هذا المصطلح؟
جزاكم الله خيرا