A man bought a car, taxed and insured it and drove from London to Bristol - all for less than a return train fare.
Tom Church, 27, made the journey in an £80 Honda Civic. Including tax and petrol he spent £206.81 on the trip.
Mr Church, from Crouch End, said he was inspired after discovering an anytime return ticket between London and Bristol could cost up to £218.10.
Great Western Railway (GWR) said Mr Church would have saved time and money if he had waited an hour for off-peak.
Advance tickets from London to Bristol can be bought from £8, a spokesman for GWR, said.