In a world that demanded you constantly upgrade, she had learned the most valuable diagnostic skill of all: knowing that sometimes, the old tools are the only ones you can truly trust.

“Log group 026,” her father said, leaning over. “That’s ignition timing deviation per cylinder.”

She clicked into Engine Electronics, then Advanced Measuring Values.

Elena nodded. She started the engine. The V8 rumbled, then hiccupped. The graph on her screen spiked.

“That part is $80,” he said, a grin spreading across his face.