Mystery surrounds the circumstances in which a driver died near Steeple Aston on May 4.
The accident happened on the A4260 at the Hopcrofts Holt junction with the B4030 Enstone to Middleton Stoney road, shortly before 1.30am.
His car is believed to have collided with bollards at the crossroads, where traffic lights were installed due to the number of serious accidents in the past.
The man, who was alone in the car, was already dead when emergency services arrived.
No other vehicle was involved.
Police have not yet released his identity, because of difficulties contacting relatives.
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