This site had a collection of some great room ideas- this link takes you to Car Themed rooms. Very cute.
WB Car Themed Bedroom, This is a little boy who loves cars dream rooom. I am a girl... and I am in love with it = ) , Auto detail tape as border, Boys Rooms Design
Great for car themed room
Old dresser turned "tool chest" for our son Jake's new race car themed room.
Owen's Cars themed room Traffic light Ikea cube shelf
Hooks for his Transportation/Train themed room
A Daily Dose of Davis: Ta Da! The Bookshelf is Done!
Transportation Birthday Party Decoration Car Paper Garland I am 1 Party Decoration Cars Themed Room Decoration Beep Zoom CUSTOM COLORS by ClassicBanners on Etsy https://www.etsy.com/listing/250298253/transportation-birthday-party-decoration
50 Ideas For Car Themed Boys Rooms - Design Dazzle
When you can't find a nightstand that matches a car themed room you do it yourself :)
Diamond Plate Wall Border can be purchased on rolls. Doesn't this add the perfect accent for a car themed room?
50 Ideas for Car Themed Rooms featured on Design Dazzle! Nascar at its finest!
If loving a tire bean bag chair is wrong, I don't want to be right.
Totally doing this if we ever have a boy! Orange curtains & right accessories=construction theme!
For Atley - he was bummed when Ari read the sign the girls found for their room - "Girls Rule, Boys Drool"