2010 Chevrolet Camaro drivetrain & axles problems

While driving to the dealership in brookdale, mn. On freeway approx 70MPH when car completely goes dead. Quickly I put it in neutral and turned it back on and complained to dealer. Driving in st cloud,mn at intown speeds when the car shuts down again. Then it also shut down twice on me in brainerd, mn at a speed of 50MPH while driving normal. Then on 3 may 2010 I was going around a curve with 2 friends when it again shut down at approximately 60 MPH.

Check engine light came on. Car was in motion. Took to dealer for diagnosis: need to replace the timing chain on a car with 44000 miles on it. Car usually sits in winter. All maintenance has been performed by the dealer. Ordered the car and purchased it to keep it. Always hand washed. It is the v-6 engine and I understand that they will only repair this engine on cadillacs & some saturn models. It is the same engine used in various vehicles. I feel that this is very premature.