At approximately 1.15am, police received reports a Ford Escort had crashed through the entrance foyer at Sainsbury’s at Lyons Farm.
It is believed that the car had previously collided with another car in White Styles Road, Sompting.
A short time after the incident three boys were arrested nearby.
Three 15-year-old boys, two from Lancing and one from Southwick, were arrested on suspicion of aggravated taking of a motor vehicle without consent, causing more than £5,000 damage to the shop.
They were released on bail until January 6 and 7, pending further enquiries.
A 17-year-old boy from Lancing was arrested on Sunday (December 11) on suspicion of aggravated taking of a motor vehicle without consent, causing damage to a property worth more than £5,000.
He has been bailed until January 7, pending further enquiries.
It is thought the car was stolen from Busticle Lane in Sompting.
Anyone who witnessed the incident is asked to contact Sussex Police on 101 quoting serial 121 of 10/12 or the independent charity Crimestoppers anonymously on 0800 555 111.