I'm happy to see someone selling his car for bitcoin, what I want to ask is about the year because you say in the title 2002-2010.
The price don't know if is fair because there are many models of this and depending on the year, these a8 are heavy but have great interior but the fact that the engine has been replaced is not good.
Buying a car by internet isn't a big deal, probably the people will check the car in RL before buy...
Same here SmartIphone... Really happy to see people offering bitcoin as payment method for a car... Good luck with the sale Mariowot, it's a beautiful car!
The OP was online a hour ago and I expected a reply from him but maybe he didn't see our comments.
Buying through internet is a big deal because you can't check in detail the car features, scratches, stability and other physical things, anyway selling for bitcoin is good and if this car worth more than 11k€ then it worth buying especially with bitcoin.