| 摘要 |
PROBLEM TO BE SOLVED: To provide a car body floor structure of an automobile allowing an increase of an absorbing amount of collision energy in a frontal impact of a vehicle. SOLUTION: When an engine is displayed backwardly in the frontal impact of the vehicle, a main muffler 15 crushes on the front side of a spare tire pan 2 of a floor panel 1 to certainly regulate the backward displacement of the engine by a deformed stroke, and the main muffler 15 is laterally disposed, certainly crushed and deformed on the front side of the spare tire pan 2. Thus, the absorbing amount of its collision energy is increased.
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