Originally Posted by deanyel

No, that's flawed logic from the get-go. Engines and chassis are made in different factories with different engineers, different purchasing departments. Here in Arizona a car sitting in the sun in the summer can get to 160-170 degrees inside, for months every year, but there's never been any sign of widespread systemic failure of the chassis harnesses. But my point was not that I know, but that the poster stating it's all biodegradable and doomed to fail was speculating. The trend just isn't there almost 20 years in.