Flaws or not, they add to the experience.
Seriously, I hate the way that cars have become disposable white goods. I completely understand why a new Hyundai I30 will work for the most of the population but for me (and I suspect many other "old" car enthusiasts) that just doesn't cut it. There has to be at least a little bit of an experience, something to make the car more than the sum of it's parts.
Now a car can either do this by being utterly, utterly fantastic or by being a little bit crap

. I loved the way that my old GTI had one of those rubbish "touch in" immobilizes and wouldn't start unless I primed the fuel pump twice and cranked it over for about 30+ seconds. It was a little starting ritual that made every single journey I made in that car a little bit special.
Cars (at least to an enthusiast) should have at least a
little bit of drama.