Hi cmth
Interestingly, I am also a 2010 Prius driver, based in UK, who's just paid a deposit for an NX300h. The way I see it, the NX is just a bigger SUV Prius, and given the poor state of UK roads now, and all the speed bumps in central London, I need the increased ground clearance and 4x4 ability that the NX will bring, plus storage space for young family. I love the HUD/auto-lights/auto-wipers/keyless-go/reverse camera/self-park in the Prius, so I will probably need to get the Premier spec NX to match that.
Our Priuses will only be London Congestion Charge free until 29th June 2015, when the CO2 limit will be reduced to 75g/km. I thought - sod it - I'll get a larger vehicle then.
The dealer assures me the vehicle will be with me in early October; I will need to choose my spec/exterior/interior in the next month, though don't think brochures are available for a couple of weeks.
I understand the UK dealers are in Madrid this week learning about the car, and test driving it themselves.