The rail gauge doesn't really matter but personally I wish Europe adopted the Russian loading gauge with 3.750m wide cars opposed to 3.080m wide. It makes a big

The rail gauge doesn't really matter but personally I wish Europe adopted the Russian loading gauge with 3.750m wide cars opposed to 3.080m wide. It makes a big difference on the comfort of sleeping carriages, you also have +2 seats on 2nd/3rd class sitting carriages and +1 seat on the 1st class. That's of course completely impossible but one can dream.