the Chunnel has had 3 serious fires already
All three of which started on lorry shuttle trains which didn't have fire suppressing equipment on them, which doesn't strike me as very hyper-safety-conscious, given the serious damage that two of them did.
Nice idea, but I'd suspect there's little likelihood of DB» rebuilding any UK▸ infrastructure to meet their gauging requirements, or buying UK gauge 'toy trains' to run on the continental network...
You might be surprised. The ICE-T (for tilt) and the ICE-TD (diesel variant) do have smaller body profiles and could well fit on much ex-
GWR▸ infrastructure
I posted the following back in December 2008 in a thread about electrification where clearances were mentioned in the context of future use for Turbos.
Getting slightly off-topic, the current issue of Today's Railways Europe says that when DB stored its tilting ICE-TD DMUs▸ in 2002-3, an unnamed UK operator did go to look at them with a view to using them on ex-GWR routes, because the tilt capability meant they are slightly narrower than your typical European train and would fit through Brunel bridges. The stumbling block was their length, at 27m more typical of Europe, which meant they would foul curved platforms