Bodywork

Bodywork





Bodywork design
To compensate for the absence of a roof in the C70 Convertible the rear passenger compartment has been reinforced with a horseshoe-shaped reinforcement section in order to retain a safe passenger compartment. The horseshoe also stiffens the rear section of the bodywork.
The windshield frame, A posts, B posts and the door sills are strongly reinforced. The windshield frame is reinforced by , and the reinforcement in the A post is made of boron steel.
There is a heavy tube made of HSS steel in the A-post. The pipe goes from the upper part of the A post down to and a little into the door sill.
Two rubber mounted vibration dampers are mounted in the body to minimize bodywork vibration. The rear damper is mounted inside the right side panel in the cargo compartment. The other is the battery shelf (left front) which has a rubber mounted mounting.
The members in the doors and the upper member in the window lift mechanism cassette are important parts of the passenger compartment reinforcement. The members are made of boron steel.
The Service Manual should always be followed when repairing and replacing body components on the C70 Convertible. It is very important that these instructions are followed because the car does not have a roof and the instructions are based on this condition. This means that cutting and joining a body component that may not be cut or joined can lead to a substantial weakening of the bodywork.
None of the body components made of HSS plate or boron steel may be cut/joined or straightened. If the reinforcements in the A or B posts or door sills are damaged they must be replaced as one unit.

Crumple zones





Front crumple zones
In the front crumple zone the collision forces are transferred to the heavily reinforced passenger compartment via three braking crumple zones.
Two lower crumple zones, front side members and the subframe transfer the forces further to the bodywork through the door sills and floor.
The upper crumple zone, the upper side members transfer the forces further through the A post and the heavily reinforced doors.

Rear crumple zone
The rear crumple zone transfers collision forces via the rear side members to the horseshoe like reinforcement.
The door members are also important as part of the reinforcement in the passenger compartment.
The trunk lid and soft top cover have been designed to crumple like "tents" so that they do not enter the passenger compartment in event of a collision.

Side
In event of a collision from the side the forces are taken up by the heavily reinforced door sills and A and B posts.
Because of the length of the doors the door members are an important part of the side collision protection.

HSS-panels













Boron steel





Galvanized body components













Windows





Side window
The side windows on the C70 Convertible can be lowered and are electrically operated.
The windows are in a cassette which is fastened in the bodywork. The mounting consists of three adjustment screws, similar to those adjustment screws which hold the window cassette in the front door.
The electrical motor is mounted in the window lift mechanism cassette. The connection between the window rail and the electric motor is via a cable which in turn pass through two rail wheels which are also fastened in the cassette.

Windshield
Compared to the C70 Coupe the window tilts slightly more.
The window trim strip is integrated with the window.

Rear windshield
The rear windshield is integrated into the outer skin and cannot be replaced as a separate unit.
The whole outer skin and rear windshield must be replaced as a unit if the windshield is replaced.
The rear windshield is electrically heated and has two cables connected to it.