VIDEOS:
Keiichiro Aizawa's Supra RZ
During a race against the Blackbird and Devil Z, Kei's Supra RZ has started showing signs of structural instability due to the lack of roll cage and chassis reinforcement as its body is getting deformed by the extensive amount of G-force at high speed, causing it to become too unstable to drive.
Example of:
Heroic RRoD