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Software-defined cars face an unanswered question on how long they will last

8/16/2026

The constraint at the center of the software-defined vehicle business case is a lifecycle mismatch: physical cars are built to last years, sometimes decades, while software platforms run on a different clock.

The auto industry has built a compelling pitch around what software-defined vehicles can do that older architectures cannot. It has not answered how long those advantages last.

Automakers and many customers have accepted the argument that software-defined cars offer capabilities that fixed-hardware vehicles cannot match.

A car that receives updates after purchase is a different kind of asset from one frozen at factory specification; manufacturers can improve performance and add features long after delivery.

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