good race car Ref.

I found these books called the Ludvigson Library Series at my local library. I was looking for pics of old Offenhauser engines and found a whole series of picture books of Indy cars, GT40's, of F1 racers. Worth a look if those types are your thing. All photos are B/W but a lot of engine and cockpit pics that really help with layout. Didn't see a NASCAR book but a lot of Lemans type stuff also.