Dangerous Race by Dee J. Adams

Four years ago, race car driver Tracey Bradshaw almost died in a horrific crash. Now scarred inside and out, she’s making a comeback, but her team is plagued by a series of “accidents”.
When the team leader dies under mysterious circumstances, former driver Mac Reynolds takes charge. The pair clash as Trace resents his high-handed attempts to control her, while Mac fears Trace’s recklessness will get her killed. Neither can throttle back the desire that spins out of control whenever they touch. Trace lets herself be seduced when Mac convinces her he finds her beautiful despite her scars, and she begins to hope for more. But Mac knows he’s not nearly good enough for Trace…