The boot of the Volkswagen Passat B6 is only 3 % bigger than the Audi A6 C6 Limousine. However, the difference is so little that it would be fair to say that both cars have similar trunk size.
The Audi A6 C6 Limousine 2.4 i V6 24V 177HP is worst that the Volkswagen Passat B6 Sedan in the category of fuel tank capacity. The Volkswagen Passat B6 is able to take by 1 liter more fuel in comparison to its competitor.
Model release date
Because of the fact that the Audi A6 C6 was launched only 1 year earlier than the Volkswagen Passat B6 Sedan 2.0 TDi 120HP manual, the gap between technology applied in both cars is not really huge, however, the Volkswagen may have a bit more new solutions applied in it.
If you are a tall man or you happen to carry in the trunk stuffs of large size, the Volkswagen Passat B6, which is by 12 millimeters higher than the Audi A6 C6, is better choice for you. However, compared vehicles do not differ much when it comes to its height and it should not be much observable.