Police were called to a crash involving a Porsche on the A27 near to Fontwell racecourse this morning.
Officers closed off a lane just before 8am and redirected traffic.
The crash happened 200 yards west of the Fontwell Roundabout.
The Porsche was heading towards Chichester.
A Sussex Police spokesman said: “The crash happened next to the Fontwell racecourse. No injuries were reported. The road was cleared just after 8.30am.”
Eyewitness Stephen Pickthall said it looked like the Porsche had ‘spun’.