Warwickshire Police are investigating the fatal collision which happened on the M45 near Rugby yesterday and appealing for witnesses to come forward.
The collision happened at about 1.30pm in the eastbound carriageway, near to the junction with the A45, and involved a grey Mercedes coupe which left the road and collided with a tree.
The driver, a man in his forties, died at the scene.
Officers investigating the incident would like to hear from anyone who witnessed it or saw the car, and the manner in which it was being driven, before the collision occurred.
They would particularly like to speak to the driver of a white or silver BMW which drove along that stretch of road towards the M1 shortly before the incident occurred and may have important information which would help with the enquiry.
Anyone with information is asked to call Warwickshire Police on 101 quoting incident 187 of 15 November.