If anyone is looking for a good car rental firm in Brasov then i highly recommend Auto Rent Brasov
The service was great, they wil drop off the car at your hotel and then drop you off after you've returned the car.
We dropped the car off around 7 on a Saturday evening and there was no additional cost as well. Definitely recommend.
Just make sure you inspect the car really well and mark on any dents or scrathes when you collect it as they perform a thorough check when you drop it off. Great value though.