The number of car buyers considering a 4x4 has halved in the last two years, according to research by the AA - although sales figures suggest many more people end up buying them.
The report found that the number of people considering a 4x4 dropped from 9% to 4% between January 2006 and now.
The AA believes this is because fuel prices have hit record highs.
However, whatcar.com research shows that although fuel prices have almost doubled in the last 10 years, sales of 4x4s have more than doubled, suggesting the link between the two factors is not as clear as suggested.
In addition, the popularity of compact 4x4s such as the Nissan X-Trail and upcoming models such as Audi's Q5 and Volkswagen Tiguan suggest consumers and manufacturers are still keen to buy 4x4s.
The AA also reports that 28% of buyers said they were looking for a cheap car to run and were turning to superminis to fulfill this goal.
Although this has been hailed as a green awakening among car buyers, research again shows that it may not be the case - sales of superminis peaked in 2003 and have gradually fallen away since.