Their impression? Per Motor Trend:
What we can tell from these renderings, should they be accurate, is that the 9-5 will truly look like a Saab. To support that conclusion, we point you to the flat roof and long C-pillars, which follow a nearly flat, shallow slope that from this angle is highly reminiscent of hatchback Saabs of old, though this car would still appear to have a separate trunk rather than a hatch. Rumor has it, though, that this rendering may not be a completely accurate portrayal of the 9-5's roofline and C-pillars, but we won't know for sure until we see the real car.
Check out the renderings and let us know what you think.