Under the Hood. Built to Fall

Ruby Castillo knows cars. She knows how to rebuild engines, bring forgotten classics back to life, and keep her family's auto shop running against impossible odds. What she doesn't know is how to stop Jax Miller from getting under her skin. Jax is the lead technician at the glossy new repair shop that has opened directly across the street from Ruby's struggling family business. He's confident, annoyingly charming, and determined to prove that his corporate garage can do everything her old-fashioned shop can do and more.
Ruby wants him gone. Then she meets someone else. On a private dating app for mechanics and car enthusiasts, Ruby has found an anonymous stranger who understands her in a way nobody else seems to. Behind a screen, she can forget the debts, the pressure, and the constant battle to prove herself. With him, she can simply be Ruby. What she doesn't know is that the man on the other end of those messages is Jax.
As their connection deepens online, their rivalry becomes harder to maintain in person. Every argument brings them closer. Every late night in the garage makes the line between attraction and resentment harder to see. But when Jax discovers that the corporation he works for is preparing to take Ruby's family business, he faces a choice that could cost him everything. Ruby is fighting to save the only home she has ever known.
Jax is fighting to become the man he wants to be. And neither is prepared for what happens when the truth finally brings their two worlds crashing together. Sometimes love finds you in the last place you would ever think to look.