From Miniature to BIG

[Super]

How does that shared bogie for the coaches not smash each other when they are doing curves as they are so close together?

Hornby have a very clever design that simply works, they have been doing coaches with this shared bogie arrangement since the 80's (or was it the 90's - I don't remember) when it was introduced in the Eurostar trains they modelled.  The big difference here is that they have supplied the accessories to make a connecting corridor etc... between coaches as well.  These have been long in the design/planning stage so I would be surprised if they have messed up the connectors now.  Having said that, they are probably restricted to the wider arc curves rather than the smaller/sharper curves that are available, but this is not unusual as often some of the bigger pacific locomotives are limited to the larger radius curves anyway.  As the normal locomotive for these coaches is the big coronation class pacific that is almost a certainty.

[Super]

Oh...so the shared bogies are only found on these model trains and not found on the real thing?

I find these to be a rather nice product, and thought I'd love to own a set that would be extremely expensive, now that is not to say that the value is bad, sure definitely not as good as on the upcoming Rapido Evolution coaches but for non generic coaches, way Way better than the Elis Clark quad art sets and ESPECIALLY the bachmann 50' arc roof coaches.

Now that Hornby have already invested into this technology, I think it would be smart to use it again...
The LNER had a few articulated coaches used with other rakes such as: Some gresley suburban pairs or my personal favourite the articulated sleeping coaches which could be an excellent opportunity to bring back the first class sleeping coach and the very posh triple restaurant sets. These were made up of a restaurant first a full kitchen car and a restaurant third, they weren't actually that uncommon to see on express services especially when you consider how unusual they were and they'd make a fantastic alternative the the regular gresley unclassed restaurant buffet car!