1995 Cadillac Deville water damage???

i recently almost got submerged in a lot of water last week. Tried to go through it when the traction control engadged and she started to slow do even with a lot of throttle. I stopped, reversed out and had some steam reveal from the hood. Not so bad at the time because i traveled 20 miles that night and then 20 that following morning. I pulled into my driveway and hear a big scrape on her belly. later that day i started her up to get warm for me, and after 5 min. she shut down. When i try to turn it over, it whinnes to start but it sounds like no spark is happening. I tried starter fluid on the distrbution cap and the air filter. Still nothing. It's been more than a week. could water have made it's way into the spark plugs?? What is your suggestion??