For those traveling to Spain from the US, and subsequently renting a car in Spain, you may find it to your benefit to pay in advance. I made a reservation with Hertz and was able to pay in US$ and thereby get a much better rate than paying with a credit card at the counter. The pre-paid rad locked in the price and thereby avoided any currency shifts, which lately have not been in favor of the US despite a slight lowering of the Euro.

Also, don't forget to check with your credit card company to see if they have any transaction fees or currency exchange fees when you use the card in another country. I'll be leaving one card at home because the fee is insanely high.

Just wanted to pass this on to any travelers in a similar position.

44