Bentley is scrambling to unveil an SUV at the Geneva motor show next month, Auto Week reported.
The SUV will feature a W12 powerplant and will have "legitimate off-road capability, said the magazine, a sister publication to Automotive News Europe.
Bentley is not confirming the model's Geneva debut, but the brand has said it is considering the introduction of an SUV.
At the Detroit auto show in January, Bentley CEO Wolfgang Duerheimer told the Financial Times that the UK-based brand is preparing a business case to sell about 2,500 units of the SUV annually.
He said Bentley plans to present a proposal for the model to its owner Volkswagen's board in the first half of this year. The SUV would be the most expensive on the four-by-four market, Duerheimer told the paper.
He said Bentley has prepared design studies and it would take at least three years to bring the model to market.
Bentley boosted its global sales by 37 percent to 7,003 cars in 2011, helped by increasing demand for its models in China, North America and Germany.