See this article in Railway Gazette. http://www.railwaygazette.com/news/...ew/talgo-trains-enter-service-in-russia.html? Is there some specific reason why the design is unsuitable here? I see there could possibly be a platform height problem but perhaps not on dedicated high speed routes. One would think the advantage of using them on height restricted routes would be most attractive. I travelled on one from Madrid in 1970 (!) and it was the height of smoothness and luxury, although my wife felt a bit queezy ('too smooth').