Personally, I believe car modeling will go on in some form or another, as long as 1:1 vehicles exist and there is an interest in them beyond mere 'transportation modules'. Car modeling existed long before AMT popped it's first annual promo, it's still going strong (maybe not as 'huge' as it once was, but still chug-a-lug-a-lugging right along,thank you), and it'll be around longer than any of us. Sure, maybe kits won't be recognizable in 50 or 100 years, and maybe the materials and processes will change, but I'm not at all worried about the existence of scale modeling!