renting 997 in germany - help
http://www.channel4.com/4car/feature/features-2005/mental-rental-911/index.html
I know this has been posted before but I had a few questions. Why do you need 2 credit cards if your liability is only up to 950 Euro .
I'd like to rent one when the winter ends (too dangerous right now for a rookie like myself) but I'm a bit confused with their 2 credit cards request. And I don't really understand german so it's not helping either.
It just sounds too cheap to be true. What's the amount they can charge you on both your credit cards and for what reasons? What kind of credits cards are required?
Thanks alot for any info you can give me.

http://www.avis.de/avisonline/de/avis.ns...1256D43002EEDC8