Exes can sense The Driver’s life in his vehicles

“They’re following you.” He gestured at the exes as their skulls turned after the battlesuit. “They’re watching you.”
“Yeah, man,” said Cesar. “That’s what they do. You new here?”
The lieutenant snorted. “You’re in the suit. Why are they still going after you?”
“ ’Cause it’s what they do. That’s why Danielle’s so…” He dropped the volume of the speakers. “That’s why she wants to get back in here, bro. So she’ll feel safe when they go after her.”
…
The battlesuit held out a hand and flexed the fingers. “This is me right now. So they see the suit as alive cause it’s me. It’s, like, living metal or something.”

Excerpt From Ex-Isle, pg 282-283
Peter Clines
https://books.apple.com/us/book/ex-isle/id989619017