UPGRADING: Wheels & Tires - is this possible?

[equinox2008]

Will these tires and wheels fit on my 2008 Chevy Equinox LT?
I am planning to upgrade all four of my tires and wheels from my stock one's on my AWD (all wheel drive) 2008 Chevrolet Equinox LT. the stock tires and wheels it came with are:
tire: 235/60/16 (16inch rim)
wheel: 16inch

The one's I want to get are:
tire: 245/40/20 --- continental extreme contact DWS (dry-wet-snow)
wheel: 20inch rim BRAND: 2-Carve Alloys
the links for both of the new tire & wheels I want are below.

http://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=ExtremeContact+DWS
http://www.carid.com/custom-wheels/4-113697.html

Now for the question, I was wondering if this was compatible with my equinox (it hasn't been modified any other way)
and if the wheel would fit in the tire and if the wheel and tires will fit on my equinox. If not what do I need to
do to make them fit? will the tires be able to support the weight? is the rim width of tires wide enough for the rims?


Here are a few links for SPECS on my 2008 AWD Chevy equinox LT
http://autos.aol.com/cars-Chevrolet-Equinox-2008/specs/
http://www.jbcarpages.com/chevrolet/equinox/2008/specs/
http://www.intellichoice.com/1-12-2008-22693-26/2008-chevrolet-equinox-lt-awd-4dr-suv-specs.html