Argh. That's too bad. An Aveo would have had an interference engine.
When I lost a timing chain in my '84 Cutlass Brougham coupe 3.8 V6 with 160,000 miles, I was at the end of a ramp in Vancouver WA, there was an almost imperceptible shudder, and silence. A tow truck came. At the shop, they pulled off all the pulleys, also threw in a new water pump, put on the new timing chain, and buttoned it up. I later sold the car to a really cool Catholic high school senior from a very nice African-American family in Seattle. When the father met me at the AAA to do the paperwork and drove off, the exhaust note was like that of a car with less than 50,000 miles. But my beloved car went to nice folks and I hope it served them well. Forget those high-tech ergonomic seats! Those plush Brougham seats made it the most comfortable car I've ever owned.