drives a shed now
Car: 2007 CTS GT i-shift
Join Date: 9th June 2013
Thanked 514 Times in 420 Posts
Wouldn't say it's a massive difference but if you haven't got the latest then I'd go for it. Was an improvement over the version I previously had, which was likely the original software.
When I first called was quoted £60, but after some discussion; one arm have to always use auto and it's down-right dangerous, they agreed £30. So hide an arm inside a jacket and play on it - lol