Moon Called: Mercy Thompson book 1

I didn't realize he was a werewolf at first. My nose isn't at its best when surrounded by axle grease and burnt oil . . .'Mercedes Thompson runs a garage in the Tri-Cities. She's a mechanic, and a damn good one, who spends her spare time karate training and tinkering with a VW bus that happens to belong to a vampire. Her next-door neighbour is an alpha werewolf - literally, the leader of the pack. And Mercy herself is a shapeshifter, sister to coyotes. As such, she's tolerated by the 'wolves but definitely down the pecking order. As long as she keeps her eyes down and remembers her place, the pack will leave her in peace.