I usually never write, but this time I'll make an exception. Today I was at the summit, so all I can say is if you're early, no problems.
The path to Kredarica is trodden, but it certainly worsens during the day due to temperatures. No one went to the top from Monday to today, today at least 10 people, surely more. With all gear and early start, nothing to fear.
I parked with a fairly low French car by the woods, some parked further at the very last parking lot. I won't say the road is nice, because it's not - but it's doable.