As near as I can remember, there were about 19 between my wife and me since we've been together (almost 30 years). I've updated my number three times since I started this post with vehicles I forgot about.
There have been cars, pickups and a motorcycle of all different makes and models. Oh yeah, there were 2 4-wheelers in there as well.
My favorite would be the 2010 Challenger R/T that I bought new.
Longest lasting is the 1997 Ranger that I have had since new. It needs a new slave cylinder but will still run around town just fine. Timing belt broke at 180K miles, but runs fine since I fixed it.
Least favorite would be my wife's 280ZX. I installed or had installed 6 different starters on that car in a year. It had a fuel injection problem that I could never figure out. A close 2nd would be the Jeep Comanche pickup I bought and didn't realize someone had rolled the odometer back probably 100K miles. I had nothing but problems with it.