I used to valet park back in the day and with that being said i will not have my cars parked valet. 90% of the time its not a big deal I never did any joy riding or anything. Most of the valets i worked with would not beat on privately owned vehicles but when you get to drive a CTS-V you don't baby it but at the same time I wouldn't be doing burn outs, dropping the clutch, and redlining although a few valets would do such things. In summary of my experiences of when i use to valet is that normal everyday cars don't get beat on usually, sports cars yes but usually not tire shredding doughnuts people tend to think, and rentals which u can tell by the bar codes in the window well those got most the abuse from valets. I wouldn't take the risk of getting one of the few people that work there that would abuse it