Here are three GT40 kits that anyone can build (if you have patience for paper folding).
<ul type="square"> [*]http://art66.hp.infoseek.co.jp/fart66002_pap05_004.htm
[*]http://oniya.ld.infoseek.co.jp/craft/car_ford.htm
[*]http://www.3dpapermodel.com.tw/report/show.asp?num=138&page=1
[/list]
I found these at: http://genius.poke1.jp/pmdirectory/
(lots of paper car models)
<ul type="square"> [*]http://art66.hp.infoseek.co.jp/fart66002_pap05_004.htm
[*]http://oniya.ld.infoseek.co.jp/craft/car_ford.htm
[*]http://www.3dpapermodel.com.tw/report/show.asp?num=138&page=1
[/list]
I found these at: http://genius.poke1.jp/pmdirectory/
(lots of paper car models)