I used it on a vehicle once and I got it at my usual auto paint store.. IT wasn't bad. Valspar has been around a long time. If I am not mistaken it was used on cars from the 20s,maybe Fords.
I used their Tractor Enamel and Metal Primer. I recommend the Enamel but their Primer is horrible. Took 5 days to harden and took even longer before I felt safe to add the top coat. I use the Enamel on a Industrial CNC router and it is holding up great.
Used the TSC Valspar a number of times and it works good. It can't be thinned much so it is thick to spray unless you have the right nozzle on your gun.
a buddy just did his 73 gmc work truck with it and man it looks good its shiny and layed great for a back yard paint job. its not as good as a factory finish but once he rubs the bugs and pollen out it will rival a macco job.