The 315's on the back of the big A body cars are super short. I know everyone wants to see the larger, wider tire
number, but when
overall diameter is sacraficed, it doesn't always look right. Especially when you car looks best with a 27" tall rear tire. The 315/35/17 is only 25.7" tall, so from the rear, you have some width, but from the side of the car, you're not filling up the wheel well. Another key note is that a 315/35/17 should really go onto an 11" wide wheel.
What I would do? Bump up to an 18" wheel. Tire sizes are much friendlier for your year and body style and are taller and come in the right widths to fit.
18x9 front, with a 275, and an 18x10 on the back with a 295-305 is a slam dunk. And you won't have to cut up your car to fit an 11 with a 315. The tire heights are there, and available, and your sidewalls won't look super short, and leave you with a huge gap between your tire and your upper fender.
If you need more help, feel free to call, and I can better explain what I'm talking about above.