Yes, it does have the 7" colour touch screen, with satnav, mirror link and a few other goodies I didn't know about.
There are lesser buttons on the steering wheel ( my C4 had more , like your DS, Dave)
Some of these functions are now via the touch screen system, making the steering wheel less cluttered.
Have to say, after 48 hours of collecting the DS4, I returned to the DS dealer..just a little peed off.
The touch screen software went completely out of control.. in one morning it re-booted and re-started no less than 18x
Each reboot the system deteriorated, losing all satellites and even though we were 30 miles from home, it was giving me directions as if I was at home. Lost all radio stations, phone contacts.. everything, just kept re-booting.
Completely lost the plot it had.. so it went back, and on a Sunday afternoon too.
Luckily the sales advisor was there, very apologetic and promised it would be sorted the next working day.
They gave me a 67 plate DS3 (petrol auto) as a temporary courtesy car..
While I was very disappointed with the SMEG touch screen failure , they did what they could to resolve the issue as quickly as possible.
Later Monday afternoon, he called to say the DS4 touchscreen issue had been resolved, with a software/ firmware upgrade to a later version.
Collected it Tuesday, and all is well, the issue has indeed been resolved. so just a little inconvenienced by it.
Looking forward to exploring the onboard juke box, evidently can upload music and even photo / images to the system for display and play on the touch screen. The sound system is better than that was in the C4 Excl, but the Dab radio still auto tracks between FM and DAB in (allegedly) poorer reception area's.
The Bluetooth connection to mobile is infinitely clearer and better than on the old C4.
One thing I do find bizarre, and put it down to French quirkiness.. ( a bit like the upside down USB socket! )
There is NO way to actually turn the radio OR sat nav function OFF !
Yes, can flick between the two, but they are always live and on, until the engine is turned off.. bizarre or what !
The best you can do is mute the volume, but the sat nav is always busy in the back ground.. though I am getting used to it now..
The software interacts directly with the dash dials too.. usual trip 1 & 2, consumption/ mpg/ duration from and to fill up etc all replace the speedo screen.
The sat nav instructions / directions also replace the digital speedo / mph screen with a touch of the r/hand steering stalk.
When radio is active, a compass appears in similar position too.. useful that is.. as well as radio station etc
I guess this must be why the entire touchscreen stays 'on' all the time.
Just takes a little time to get used to the set up, all the warning screens appear in (colour)on the same speedo dash /clock.
Actually, having had 2 (B7) C4's, I think Citroen / DS have been very clever, using many common parts ( tried and tested) from C4 into the DS4, and improving others. Though I think they lowered the standard specs, making many extras available only as options, when new..
As such I had to compromise, with what I could get, for the available budget.