my 2004' a4 1.8 turbo quattro s-line (190)

ok, so evening all, hope we're having a good night out there!,

i just signed up here, so i do have some questions, and with all you audi drivers out there i'm sure the recommendations and help will come thick and fast. I don't have any major issues as such, just like some keen advice on how to get the most outta my car (which let me be honest..i do love this car) couple of things though, tyres..it runs on 235 40 18's which take me generally where they wanna go.. when the roads aint glass smooth... can someone recommend better tyres/type for comfort/safety etc, think the ones on it are hard wearing/long lasting, sometimes i feel as if the cars controling me and i i'm a spectator in the drivers seat, doesn't instill 100% confidence in road holding all the time, maybe someone has ideas. also, it's got less than 60'000 miles on clock, but the car seems to enjoy its regular doses of high maintainance oil, i check at least once a fortnight/three weeks which i've been told is normal for this engine.?, these are a couple of things, the rest (no a/c) that i can find...wee questions spring to mind but my post is becoming a bit war and peace i see..any help would be awesome! did i mention i love this car. .

cheers!,

john