teen wolf 6x19 confirmed that the camaro wasn’t some hand-me-down, wasn’t Laura’s or anybody else’s, it always was Derek’s and Derek’s only. It was 100% his “I’m a badass, I’m fast, I’m cool, the leather jacket is not enough, I need to have some dope car, too” vehicle. And then he felt like he needed to ‘mature” and wanted to be some pack dad or something and got himself a toyota but old habits die hard and Derek Hale loves douchebag sports cars and I, for one, am loving this.
OTP: Rolfe does "Babe, hold my beer, this will be so cool" things every so often that make Cassandra question why she married him. His reply: "because I'm funny and charming and you like my cute butt." She can't argue with that, but she rolls her eyes at him out of habit.