i think from reading the above, and with my own limited knowledge on performance cars. (Golf GTD probably being the closest sport'ish thing i've driven for a while).
The c350e Is not a sports car - Hence the discussion around the boaty like handling (much better in sport mode i must admit) - however that is the pulling factor for me. I needed a v comfotable car, and loved the speed onf the GTD was more than enough forme.
SO i'm pleasantly suprised and happy with just how much power right through the range the c350e has.
The gears can be jerky. (more so in Sport+ mode, where i find my self using the paddles). In cormfort mode i rarely notice it, as the car pushes you to drive carefully, it loves a good coast, and the brakes do feel very odd.... I've only got the 17's, and you really do notice the regenerative breaking when you hot the breaks. This means (to me at least) that if you really do want to break hard, you have to hit it much harder then some other cars i've driven. - Although, again, not really an issue, as i didnt by this as a sports car.
I'd take the slight wallow round bends as a great benefit of the Air suspension, especially if you live near any speed bumps.
The engines power is enough throughout the range to put a smile on most faces. (And the sat nav system seems to make enough people cry! - but no more on that!).
Its a truly comfortable car with not bad handling and acceleration to match 250-300 BHP cars in some aspects and definitely nearer in a straight line. Its not a porche killer, but your back will feel much better after a ride in the c350e for 4 hours, then it would in any of the S3's GTI's, M3's etc etc
also... you'll never tire of pulling out of a parking space and almost hitting a pedestrian every time as they honestly don't hear you coming!
- you learn to get a 6th sense about these things
Its very hard to compare the PHEV style cars accelleration and torque in numbers that match normal cars. I'd really suggest asking if you could test drive, or see if a member here has one locally and can take you for a spin.
I ordered mine blind, and apart from a few minor issues, its been a joy.
Oddly enough, one thing that others disliked in the past i've found ironically useful. The boot space...
That lip where the battery stops and the boot deepens a bit, is an excellent sized space for the weekly shop, and it holds the bags v comfortabley with no spillage