This badboy brought us from Seoul down to Mokpo in 3 hours flat, at a top speed of 300 km/h.
The KTX trainsets are built on french technology, which is why they closely resemble the TGV and eurostar trains in France. They are designed to run on Korea's local rail lines as well as special highspeed welded-rail during top-speed stretches.
When originally completed, the KTX project was deemed a "political failure" by the Prime Minister, Lee Hai Chan. However the KTX now moves an average 160,000 people per day!