If it's really close to not rubbing, you can get 3mm wheel spacers.
245/45 is a pretty bad size for performance on the stock 2.0L unless you have a short ratio transmission or are using them in a situation you'll always be over 3500 RPM. It's also a difficult size to fit into the GD rear. 8" wide wheels work, may need a fender roll for high-ish offset, but 235/45 is a better size for 8" wheels. 9" wheels are much tighter. You need to be real careful about offset and fender clearance, as you have already noticed.
245/40 is a full inch smaller diameter, essentially the same diameter as stock. It fits better and is a better height for gearing as well, so most who want 245 will choose 245/40.