2014 Veloster Turbo, won’t start, misfired when it did run

Hello all, I recently acquired a 2014 Veloster Turbo, with 165k miles. I knew when I bought it that it was misfiring, hooked up to an OBD scanner and it said cylinder 1 and 3 were misfiring. Swapped the ignition coils from 1 and 3 to 2 and 4, and it started misfiring on those two cylinder. I didn’t get them replaced immediately, and probably drive around 200 miles after buying it when one evening it suddenly started misfiring terribly, and I lost like 75% of all power, especially in the lower RPMS. I also smelled something hot, and there was a very small amount of smoke from the front when I pulled over. Pulled over again, turned it off, started it up again and was able to make it home. I let it sit for one day before trying to start it, and it is dead. Charged the battery, tried jumping it, and replaced all the ignition coils and spark plugs. Any ideas? All help and suggestions would be greatly appreciated