2001 Saab 9-5 engine problems

I own a 2001 saab 95 se v6. Was driving down the nj tpk and the car lost power and had a small electrical like fire under the hood. Had to get the car towed from the nj turnpike off and then again to my place in bensalem pa. Total cost $77 + 66. Found out that the di cassette burned out, cost me approx $600 to fix. A day later the cat converter fails (check engine light came on again). This is certainly due to di cassette burning out. Very frustrating for a car with only 60k miles on it.

Driving at 65MPH in far left lane of highway and sudden loss of speed--could only go 20-30 MPH for a few minutes before burning smell. Was able to come to right shoulder while dodging highway traffic. Direct ignition cassette (dic) failure 1 of 2 dic's in 6 cylinder engine). Second visit required for check engine light--was catalytic converter. Third visit for another cel for second dic failure.