Possible Clues:

• "Back to the Future" vehicle
• Conveyance for Marty McFly
• Device in an H.G. Wells tale
• Sci-fi device
• Future-visiting need
• H.G. Wells vehicle
• Futuristic transport came back in a new version of the Mini
• Telephone booth, for Bill and Ted
• Eg, Doctor Who's Tardis
• The ____ , H G Wells's first novel