Super GT file magazine ver.5 features:
-inside shot of NISMO HQ factory
-40% windtunnel model of 2013 spec GT-R GT500, etc.
http://www.as-books.jp/books/info.php?no=ASS20180706
http://www.as-books.jp/books/preview.php?no=5797
NISMO discloses Downforce figures of 2013 spec GT-R/2015-16 spec GT-R!
Speed-----2013spec---2015-16spec
150km/h:___400kgf_______520kgf
200km/h:___700kgf_______910kgf
250km/h:__1100kgf______1430kgf