The problem with the Ferrari's Manettino settings for the 599 is that the damping is too firm in sport mode, so you switch to winter mode, only to find the gearchange sluggish.
Winter is the preferred setting for British roads. The car has excellent wheel travel, roll angles are well controlled and the steering – though pretty lifeless – is accurate. Its cruising credentials are excellent, although significant amounts of suspension and tyre noise do filter into the cabin at speed.
There's not a lot wrong with the way the regular Ferrari 599 goes down the road, but the thinking behind the HGTE pack is still sound. The idea is to reduce pitch and roll, increase grip and traction, and generally make the car more controllable and exploitable to drive fast. Some comfort will inevitably be lost, and likewise some tyre life, but Ferrari reckons the 599 has some of each to spare.
Mooch around town in the 599 HGTE and it does feel mildly less supple than a regular 599, though it retains an ability to shrug off surface imperfections better than most high-powered GTs or supercars. Yes, on the worst B-roads it jiggles you around in the (fabulously supportive) driver's seat a little more than is ideal, but that's the worst of it.