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Wheeled APCs are faster on road, and can cross long distances; typically, due to the limited lifetime of the treads, tracked vehicles are transported cross country by rail, or a flatbed truck which may or may not be a purpose built transporter.
Perhaps the most notorious example from a military perspective is the L60 engine used by the British Chieftain Main Battle Tank, which resulted in a very sluggish performance -- in fact, the Mark I Chieftain (used only for training and similar activities) was so underpowered that some were incapable of mounting a tank transporter.
It powered the Thornycroft Antar or Mighty Antar Tank Transporter, so was used to transport Meteor-engined tanks, the Centurion and Conqueror (and later the non-Meteor Chieftain).