Piston Slap: To What End Unibody Repair?

Matt writes:

Hi Sajeev, Long-time listener, first-time caller. I have a 2011 Volvo C30 that was recently rear-ended pretty good. As a result of the collision, the car has just had $8k+ of work done in a body shop. Included in the list of work done (among the obvious paint, bumper cover, tailgate, etc) is 4 hours of labor for a “unibody pull”. Like everyone else, I know people who have horror stories about cars that have never been the same again after accidents. I’ve only had the car back for a couple of days and everything feels ok so far, but I do fear lingering issues.

What are your thoughts on a repair like this making the car 100% again? Would you dump it immediately to avoid any potential issues or hold on to it and see?

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