Development of Lighter-Weight, Higher-Stiffness Body for New RX-7 920244

To realize high levels of handling, driving performance, and NVH characteristics for a sports car, it is important to develop a lightweight and high-stiffness vehicle body. For the new RX-7, weight saving and higher stiffness were pursued as top priorities from the very first stage of the program. We were able to achieve 20% higher bending stiffness and 15% higher torsional stiffness with vehicle weight reduced by 30 kg, compared with the former model.
The development of the lightweight, high-stiffness body for the new RX-7 is discussed under three subjects:
  1. 1.
    Contributions of vehicle components to vehicle stiffness
  2. 2.
    Effective procedure for developing vehicle high stiffness and lightweight construction with emphasis on calculation analysis
  3. 3.
    New RX-7's body structure and accomplishment


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