Avant B8 Wheel Upgrade

[scotoroboto]

Hi, new to the forum and after some honest realistic advice. looking upgrade the wheels on my car as a treat. got an A4 Avant B8, i;m wanting the below linked wheels TTRS in 19 inch. Would they be too big for the car, is there anything I should worry about or should I play safe and go 18 inch? 

Any other suggestions on making it looking more attractive would be appreciated too. I'm thinking about swapping to the RS front grill and Xenon headlights too. 

http://www.ebay.co.uk/itm/19-inch-4-New-AUDI-A5-TTRS-Style-GUNMETAL-GLOSS-ALLOY-Wheel-Gray-Ask-For-Tyre-/331994114827?fits=Car+Make%3AAudi&hash=item4d4c642b0b:g:ifcAAOSwcwhVP8kc 

[EdtheDuck]

Hi Scott

Newbie here too today.

i've ordered some 19" for mine and the fitment needs to be correct. 

Go onto any alloy wheel site put your car details in to get correct fitment sizes

cheers

Eddie