Subject: 97 Mitisubishi Eclipse Spyder 2.4 L
Question:

Was driving down road and car quite and will not start back. There is no spark.

Answer: David,
That's not too much information to go on, but when your car shut off on it's own and will not start back up, there are 3 areas that need to be checked:
- Fuel system
- Ignition system
- Air intake system

It's also possible you have a timing problem, or your car's computer may be malfunctioning. Also have your fuses and relays checked. Have those areas checked and I bet your problem will be in one of them.
Good luck!