A white Volkswagen Golf was speeding down the Tampines Expressway (TPE) toward Changi Airport.
In a video uploaded on YouTube by SG Road Vigilante, the car could be seen zooming past vehicles before it crashed into the van.
The impact flipped both vehicles, with one sending a shower of sparks into the air as it scraped across the road.
GIF made from SG Road Vigilante/YouTube
In another Facebook video, the Volkswagen was seen hitting the back of the van, causing both cars to flip.
Photo via Singapore Road Accident.com/Facebook
Responding to Mothership's queries, the police said they were alerted to the accident on Jun. 30 at about 5:10 am.
A 25-year-old male van driver and his 54-year-old male passenger were conveyed conscious to the hospital.
The driver of the Volkswagen, a 19-year-old male, was arrested for drink driving and conveyed conscious to the hospital.
Police investigations are ongoing.
Top photo via SG Road Vigilante/YouTube & Singapore Road Accident.com