Johnny Manziel: Another Mysterious Car Wreck

More troubling photos involving Johnny Manziel -- a car owned by the ex-NFL star was clearly involved in a bad accident in Dallas ... with the driver's side completely smashed in.

TMZ Sports obtained pics of Manziel's 2015 Nissan GTR -- the same car he was driving during his alleged domestic incident with his ex-GF, Colleen Crowley, last year in Ohio.

Multiple sources tell us the car appeared Monday night at a Dallas apartment complex where Manziel is supposedly staying ... looking like it had been T-boned. You can see in the pics the driver's side airbag was deployed. We've confirmed the car is still registered to Manziel.

We don't know how it happened, who was driving, or if Manziel was even in the car at the time. Cops tell us they have no record of a crash involving Manziel. We're trying to find answers.

We've reached out to Johnny's rep and Johnny himself -- but so far, no word back from either.