For a rear wheel drive, your looking at an offset range from 12 to 24mm and centre bore measuring 71.5mm, 5X 115 (or 5X 114.3)
I would offer the wheels against your hub to be 100%. The offset you mention from the site is relating to the all wheel drive.
As MD suggested you really need to take measurements of the actual wheel or try it on your car as the wheel could be available for both RWD and AWD
If the wheels are for AWD, you can then purchase a 20mm hubcentric spacer to bring it back to a RWD spec as long as centre bore and stub pattern is same.