A world record attempt is underway in Kent. Local families have teamed up with war veterans from the Royal British Legion Industries at Aylesford.
They're trying to build a full-size model of a supersonic car out of modelling blocks - and hope to get a Guinness World Record.
Here's Geoff Streetley from the RBLI:
Officers believe there would have been a number of witnesses to the collision as it was a busy part of the day and are appealing for anyone with any information to get in touch.
Witnesses are asked to call officers at the Kent Police roads policing unit by calling 01622 798571, quoting incident reference 04-0559.
Police are appealing for information after an elderly man suffered serious injuries in a collision in Aylesford.
The crash happened just after midday yesterday at the Quarry Wood industrial estate in Aylesford. A blue Ford Focus collided with an 80 year-old man at the roundabout on the estate.
The man was taken to hospital with serious but not life threatening injuries.