Er, yes - I've had one since the summer, and I love it!!!! Previously owned a LS430 facelift which was quiet and comfortable, but a big disappointment after my LS400 Mk3, which didn't have all the toys we expect now, but drove beautifully, smooth, quiet, imperceptible gear changes and nearly 30mpg on a run, seats a bit hard and flat though. The 430 always felt woolly and indirect and the gearbox had a mind of its own, despite 6 speeds it often chose the wrong one. The road testers criticised the 460's gearbox and some also its ride and handling. I couldn't find a demonstrator nearer than Bristol, about 120 miles away, so never got the chance to drive either the 460 or 600, but got brave and decided on the 600, one which had been 'stuck' on ebay and Autotrader for many months, with sensible miles and well under £30k. It came as a great relief to find it has the same lovely smooth ride that I remember from my first LS, an engine that stops and starts imperceptibly on its own, a transmission (there aren't any gears as such) that is always ready to do what you want with a gentle squeeze of the loud pedal (except it isn't ever loud). The handling I find excellent also, though I'm pretty sedate, but it just inspires confidence and I'd rate it the equal of the Jaguar XJ (X-350) of which I've had 3, praise indeed. Maybe the AWD helps here? Brakes are also very powerful. As for the toys, crikey! In summer I was averaging 32mpg, now it's colder I'm down to around 28. Road tax is £250. So if you're tempted and can find a nice one, go for it, you'll not be disappointed.
Cheers,
Pete