I contacted the Logitech support, that immediately sent me a brand new G27, even if my warrenty was over.
Fantastic customer support!
I've been always very happy about my G25, that I consider a really good wheel. Obviously I was quite curious to try out the new G27 to be able to compare the two.
It was quite obvious from my first laps with the G27, that the two wheels where pretty much the same. Both with a very nice force feedback and great precision.
There are tiny differences between the two wheels:
+ more buttons on the wheel. This is obviously a very good point.
+ the brake has a more progressive spring, improving a lot the braking feeling.
+ they added a small element behind the brake pedal (black element on the pic below). This helps a lot to do the heel-and-toe. I was amazed about it. It's much much simpler!
+ led lights on the wheel for the revs (works by default with nk also). I doubt I will ever look at my wheel to shift though!
+ stiffer H-shifter. The shifter is much nicer. Changing gear with the H-shifter feels much better.
- if I'm not mistaken it's not possible anymore to select the Sequential shifter. I've to say that in 4 years I might have used the sequencial shifter maybe 5 times. not a big deal for me, but maybe this can be a problem for someone.
+ the initialization of the wheel it's a bit faster, and maybe even less noisy
Do you have a G25 and you are thinking to change it for a G27? My suggestion is to spend your money in a different way.
It's not worthed! The G27 is a very good wheel, but the differences are really minor.
From my personal experience, I've to say that I'm fully satisfied about the G25, and for this first impression about the G27 too.
Huge difference with the entry level wheels. I tried the logitech DFP, for example, and the difference is huge. Not so much on the feedback, but on the overall quality and the pedals.
I would be very curious to try even a fanatec wheel to feel the difference.