They have been formally identified as Daniel Eldergill, 21, of Browns Lane, Storrington, and Chloe Richardson, 20, of Roman Way, Billingshurst.
The one-vehicle collision happened on the A284 London Road, near Crossbush, on Thursday, November 17.
People have been leaving floral tributes and messages at the scene
Anyone who saw what happened is asked to email [email protected] quoting Operation Highmoor.
Witnesses can also report online to https://sussex.police.uk/contact-us/response-to-appeal/
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