Demaryius Thomas is lucky to be alive today -- let alone healthy and ready to play in the NFL -- 'cause TMZ Sports has obtained pics of his car crash ... and the scene is gnarly.
Thomas was doing 70 MPH in a 30 MPH zone in Denver at around 12:20 AM on Feb. 16 when he lost control of his SUV and crashed it into a curb.
One witness tells us the car flipped several times before coming to a stop right-side-up ... dozens of yards from where it took off from.
Thomas and his two passengers somehow escaped from the crash okay -- which seems like a miracle when you see the damage that was done.
The pics show a mangled car ... the back is completely smashed in while the engine is in pieces, falling out of the front.
Thomas was hit with a felony charge of vehicular assault for the incident, but he reached a deal with prosecutors this week to avoid jail time.
The former Broncos star pled guilty to a lesser misdemeanor charge of careless driving resulting in injury in exchange for having the felony charge dropped.
DT's punishment? One year probation and 50 hours of community service, plus fines and restitution.
Thomas is currently a free agent after being cut by the Houston Texans earlier this offseason.
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