Even Lamborghini has been toying with its own four-door concept car, the Estoque.
2007 The Chevrolet Volt, an experimental four-door concept car with a gasoline-electric hybrid system, was the hit of the North American International Auto Show in Detroit.
The four-door concept, previewed on Monday night before the first of two days of news conferences here, was said to be propelled by a plug-in hybrid diesel-electric powertrain capable of achieving average fuel economy of 1.8 liters per 100 kilometers, equivalent to 131 miles per gallon on the European test cycle.
The back-door concept is a bit fuzzier, but there's a growing concern in some circles that this technology also exists.
The Pretty Things' SF Sorrow (1968), the Who's Tommy (1969) and the Kinks' Arthur (Or the Decline and Fall of the British Empire) (1969) introduced the format of rock operas and opened the door to concept albums, often telling an epic story or tackling a grand overarching theme.
Palmer says Aston's production SUV will be a five-door, but the design themes and the positioning of this three-door DBX concept will live to production before the end of this decade.
The over-the-door hook concept is great, because most dorm rooms aren't cool with you destroying the wall with nails or screws.
I genuinely thought, because I'd mashed so much squash, and energetically boiled so much pearl barley, and approached meals with an aspect of rampant enthusiasm, never distinguishing between treats and chores, never opening the door to the concept of duty, that I had raised a little food-polymath who would eat anything.
Most striking, the dual doors of the concept car were changed.
Critical Myth reviewer John Keegan gave the episode a 7 out 10 rating and wrote that, "Overall, this episode opens some interesting doors, adding the concept of genetic memory to the list of phenomena that cannot be explained in fully material terms.
