[2001 ZTS]

I forget what make or model but there is a good one out there. It has some sort of duplication where the next anticipated gear is already "there/clutched in/whatever you want to call it" BEFORE you flick the paddle. In this case it is instant.

EDIT: Found it, not quite instant but 0.3 sec per shift:

http://www.canadiandriver.com/articles/jk/031119.htm