Help. Beginner Questions

ok. I just bought a 96' Acura TL 3.2 Premium and its mint except for the stock wheels which are ugly enough to bring the whole car down..

I know nothing about wheels and tires and i was wondering if someone could give me a begginers crash course

Whats offset?
what is the lug measures (i.e 5/100, 5/4.50) i know my car has 5 lugs but what are the other things in the equation..

chrome and painted are finish and alloy and metal are base

so can you have a chrome alloy wheel? what does premium mean?(saw on a car build thing on acura.com)

whats a 2-piece rim, a 3 piece rim?

i dont need anything fast its a luxury car so what looks good?
the first number in the ??x? is the perimeter like 14-18 which of those should i get? the higher means performs more but is less comfortable?

whats the second number? (ie. 16x5)

oh and what are those rims that like rotate inversely so when the wheels are moving forward the rims look like there going backwards. those look cool.

here you will find all of the info you need

http://www.tirerack.com/wheels/tech/wheeltech.htm


Luke