Alton Towers operator Merlin Attractions has been fined £5 million at Stafford Crown Court after admitting health and safety breaches over The Smiler rollercoaster crash.
The crash left two teenagers needing leg amputations, and several other victims with serious injuries.
Several victims of the crash were in court, where the hearing was told the force of the rash was equivalent to a family car crashing at 90mph.
The force of the Smiler rollercoaster crash was equivalent to a family car crashing at 90mph, a court heard.
Those who were injured were all sat on the front row of the ride - which had already experienced a fault that day.
Despite another ride closing due to high winds, Smiler stayed open.
Prosecutors said it was likely the 46mph winds which caused the carriage to stall.
But it was "human errors" which left two teenagers needing leg amputations and several others seriously hurt.
Alton Towers owners Merlin Attractions Operations Ltd have been told to expect a "very large fine" after admitting health and safety breaches.
They are expected to be sentenced on Tuesday.
A video showing the moment a carriage on the Smiler rollercoaster at Alton Towers crashed into an empty car has been shown in court.
Merlin, the operator of the park, has been told it should expect a "very large fine" for breaching health and safety.