Picked mine up today. Here are two quick photos... I'll upload more later once my phone syncs everything to the web!
C350e - Album on Imgur
First impressions...
It's nice and quiet, rolling along in electric mode will entertain me for a while to come!
It's a little clunky sometimes when moving from engine mode to electric if you're also slowing down quite rapidly .
The brakes feel reasonably smooth, but you can definitely notice the difference between regenerative braking and normal discs.
I plugged the car in for 90 mins and it reached about 85% capacity, this displayed as 15 miles of range but lasted about 8-9 I'd say.
On my just under 100 mile drive on mixed roads, M25, M4 and A-roads starting with no charge I averaged 40mpg. Even when the electric range shows as empty, the battery is still at about 18 - 20% capacity.
And I can't really tell the difference between the air suspension in the C350e and the normal springs in the E-Class hire car I had.
I'll add more once I've driven it some more this evening. I've already had 2 people approach me to ask about it while it was charging up, so lots of keen people out there!