Nothing.
The car is very fast; it's very easy to go above speed limit as the cabin is very quiet and isolated from the road. Brakes are amazing; traction control helps keep the car pointing in the proper direction.
The suspension is rather soft; the car is more of a comfy GT than a sport sedan. Despite the softness, roadholding is outstanding and driving at the limit is very predictable with a bit of oversteer.
The car is very close to perfection; about the only negative is its dead steering. It feels like playing a computer game; turn a little, see what happens, turn a little more, see what happens then; virtually no feedback through the wheel.
Winter driving is fine with snow tires.
Your review is dead on. Great car except for the steering which is dead. The transmission shift pattern is a bit wierd too. Otherwise, this is a very good, fast comfortable car. I live in a hot climate and the air conditioning is primo.
Phil in Texas.