Originally Posted by andyadcock
The only problem as I see it in using PT, is lack of flexibility and the loss of time on what for most people, will be a relatively short trip. PT is ok if you're backpacking for a few months but most won't be.
Hiring a car is not that expensive, especially between two people, it will certainly give you far more time actually birding and you can stop anywhere you want on the way.
I agree, and that is the argument for why my wife and I almost always use car rental - the biggest problem is getting a couple of weeks off.