Audi A4 questions

[JordanVw at aol.com]

im looking at a few b5 A4's.
 i saw a '97 1.8Tq ..auto. it wasnt the tiptronic. should i stay away from 
the non-tip auto trannys? 
also what engine is better? the 1.8T or the 2.8v6? is there any mods that can 
be done to the 2.8v6?and another question.. i looked at a 99 a4 w/ 2.8v6..it 
was this wild blue color..like jazz blue.. anyone know the name? how many yrs 
was this color used? the car had no sunroof!!! is it possible to get one put 
in? 
also what models had the sport seats? most ive looked at had just the regular 
leather comfort seats..without the high side bolsters.. one i looked at 
actually only had a drivers power seat.. the passenger side one was manual... and 
how much smaller is the A4 than the B5 Passat? thanks