I've lived in Aarhus and I was quite surprised how small part of Denmark's rail network is electrified, it’s only 642 km of 2560 km (https://en.wikipedia.org/wiki/Rail_transport_in_Denmark), so almost all long-distance trains run on diesel which is quite remarkable in a country that otherwise has a very green view on the environment.

Most of the long-distance trains are of model IC4, the delivery of these trains took ages and one of the missing trains was found in Libya, Italy’s former prime minister Silvio Berlusconi had given it as a gift to the Libyan dictator Muammar Gadaffi (http://cphpost.dk/news/international/ic4-train-a-gift-from-b...).