I've just tested (and ordered) a Kuga PHEV. Very impressed by the driving experience which is seamless. Compared to the 190PS diesel it is significantly quicker and quieter. Feels well built and comfortable with a good ride / handling balance on the 19" wheels and ST Line X sport suspension.
Electric only is perfect for around town and even in normal mode with a charged battery it stays in battery only around town. Engine joins in seamlessly and provides a pseudo gear shift even though it is a CVT. Little of the normal CVT elastic band type feeling with the engine revving.
The car had only done 500 miles and had averaged 75mpg over it's life so far.
We have solar panels so will charge the car during the day pretty much for free (the panels paid for themselves years ago) 35 mile electric range seems entirely possible. We used 12 miles of electric range on a 19 mile trip and the engine wasn't on very much.