Manual, I got the very first one from EPRacing and never looked back.
Awesome bit of kit and the best money I have ever spent on the Zed. It's absolute peanuts for the thrill it gives you.
I'd love to try this on an auto, bet it's superb
My mate has one in his auto and it is a great bit of kit but on sports mode 7 i was worried if i got one that i would stall the car as it is sooo sensitive, mine is a manual.
I think i am going to order one