Design
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- 09 MS3, 17 ABM Si Sedan
Steel. The key benefit is torsional rigidity. But it also gives Honda more room to reinforce the roof plane where it intersects with the B-pillar.Is the roof in the CTR made of steel or aluminum? In the EVO IX the roof was aluminum and that fact alone disqualified a sunroof, they'd have had to use a steel roof which is a weight penalty on top of a weight penalty, no pun intended.
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