Performance difference between manual and Tiptronic.

Hi, I'm interested in purchasing an A6 2.5 Tdi Quattro. I found a 1999 model with Manual. Could anyone let me know if there's large performance
difference between the auto and manual as well if there's large difference in fuel economy (or if you can direct me to a website that has this sort of info I'll be grateful). Thanks for your help. Kind regards, Raphael
Ps. If you want to reply directly, please remove NOSPAM from the address... :)
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.