We've spotted this covered-up car on the M25 on a number of occasions recently and reckon it's the replacement for the Jaguar S-type - the XF - being put through its final paces.
We're really looking forward to seeing the production XF at the Frankfurt Motor Show in September. The car will go on sale here next March.
If you have seen this car, we'd like your pictures of it. We'll publish a selection of our readers' photos of the car and the snapper of the best photo will win a year's subscription to What Car? magazine.
E-mail your XF photos by clicking here by midnight on Thursday June 14.
Please remember, safety is paramount. Don't take any photos while driving - passengers take pics, not drivers. Don't do anything that could endanger yourself or other road users.
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