I hate to the bearer of bad news but 15x8" wheels are very tricky to run on the front of our cars. Unfortunately, I'm pretty sure you're going to have fender clearance issues or at the least, look kinda funky.
Starting with a known size, 15x7, 4.25" backspcace(wheels that a lot of folks run on the fronts of these cars), the ones you've got there would stick out .75" farther, not accounting for tires. If you went from a 215/60/15 on a 7" rim to a 235/60/15 on the new 8" wheels, you'd be over an inch closer to the fender. You'll likely have contact at the corners when steering, if not the fender lip itself.
This tool is really helpful, assuming you know what already works (as a starting point).
Wheel-Tire size comparer - RIMSnTIRES.com
