2018 Subaru WRX STI Type RA: First Drive Review

© Perry Stern, Automotive Content Experience© Perry Stern, Automotive Content Experience
Weight Reduction
As a 4-door sedan the STI is not a lightweight sports car; however, Subaru has taken steps to lighten the Type RA — the most significant of which was replacing the standard roof with one of carbon fiber. This not only reduces weight, it improves stiffness and lowers the center of gravity for better overall performance. In addition, the spare tire has been replaced by an inflation kit. Total weight loss compared to the standard STI is 68 pounds.

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