Based upon Gaucho 100k's recommendations we went ahead and scheduled an afternoon pickup with Silver Star. We unfortunately couldn't give them the requested 48hr advance notice, but Fred (owner) was very quick to respond and accommodating to our needs.
Karina (his wife) picked us up the next day and took us around town for a tour. She was a wonderful tour guide taking us to some interesting points of interest and again, very accommodating to what we needed to do. She brought us bottles of water for the afternoon drive and even shared her chocolate bar with us that she'd bought from a street vendor.
We highly recommend this service and will be telling all of our work colleagues who travel to this area to use this service, it's just too easy and too good to pass up.
We are in no way affiliated with Gaucho 100k or Silver Star Transport.
Their web address:
www.silverstarcar.com