Audi A6 Avant Quatro or A8 quatro?

[designideas]

I have the choice between the two they both have 100k miles and I like both body styles. Hear a lot of good things about the A6. Is the A8 as good? Is it reliable?
the A6 is 2002 and the A8 is 2000

 

[RossK]

If I were you, I will buy Audi A8. The Audi A8 is a full-size luxury car built by the German automaker Audi to replace the V8 model as its flagship offering. Although the Volkswagen Phaeton, long wheelbase Jaguar XJ8 and Lexus LS 430 compete in the same size and price category as the A8, the Mercedes-Benz S-Class and BMW 7 Series are often thought to be its primary rivals.