Apparently Spain doesn't live by the addage 'measure twice, cut once' | Spain spends €258m to build trains too big for its tunnels – DNyuz https://dnyuz.com/2023/02/07/spain-spends-e258m-to-build-trains-too-big-for-its-tunnels/'The trains must now be redesigned to ensure they can pass safely through tunnels on their intended routes. The first services will not begin until 2026 at the earliest, two years later than expected.'