Ding Dong wrote:
rent a 4WD and go explore.
You don't really need a 4WD vehicle unless you plan to travel on
'secondary' roads during the rainy ('green') season. I've rented a
4-cylinder Yaris (automatic) on about a dozen trips, and it's always been satisfactory. I was actually surprised at the power it had climbing the mountain roads from Atenas to Orotina and the highway (Pan Am) from San Jose to Cartago and points south. Nothing spectacular, but certainly adequate.
(I know a little about power, having leased a '96 Corvette for four years).