A new high speed train being tested resembles more a plane. The new train doesn't use tracks and actually flies slightly above the ground. See the link for videos.
A ground-effect vehicle takes advantage of this fast-moving air and uses some stubby little wings to fly just above the ground, like a maglev without the mag. This is a tricky thing to do, since you have to control the vehicle more like an airplane than a train, meaning that you have to deal with pitch, roll, and yaw and not just the throttle. A Japanese research group led by Yusuke Sugahara at Tohoku University has built robotic prototype of a free flying ground-effect vehicle [photo above] that they're using to test an autonomous three axis stabilization system