Boise police spokeswoman Haley Williams said there were many with serious injuries, but no fatalities had been reported by late yesterday afternoon. The driver is cooperating with the investigation.
Police believe the act wasn't intentional, but individuals who attended the event seem to suggest that it was the lack of respect the driver showed earlier.
Eastward Overland Road stays shut from Entertainment Way to Cole Road. Police will forward information to the Ada County Prosecuting Attorney's Office when the investigation is completed. The driver then lost control "while going too fast", went up over the sidewalk and onto the grass where onlookers were sitting. Hundreds showed up to view the unique cars on show and engage the drivers.
Steve Vatcher and his son, Ean, were among those who saw the crash.
A gray Porsche leaving a Boise auto show crashed onto a crowded sidewalk, sending at least 11 people to the hospital. Six of those injured were transported to the hospital via ambulance and two went to the hospital in a private vehicle.
On social media, there are unconfirmed reports from witnesses suggesting that children were among those hit.
Lt. Lebar said "excessive acceleration" is to blame for what happened. "We'll wait to gather more information". Check back for updates as they are confirmed.