There is a flame trap in a normally aspirated S70, and there are pluses and minuses to both cars. The S70 is just the 850 "slightly" revamped. The door panels are weaker on the S70, as is the quality of the seats (and yes, this is an opinion). I've replaced NO ignition lock cylinders on 850's; I've replaced several on S70's. The evap is slightly easier to do on an S70, but you'll still be doing it. I love that they moved the window switches to the door; I hate that I can't save old switches out of old master switch set ups. The glovebox light problem hasn't shown up on the S70's as yet. The turning radius seems to be a bit better on the S70's than the 850's, but it seems the inner tie rods are more cheaply made since I've replaced as many on S70's as I have 850's. I've also replaced many blower motors on S70's. The timing belt interval is longer on an S70; the S70 seems a bit smoother than the 850, but in writing this I think I've decided that the S70 is a more cheaply made 850, and again...this is just my opinion.

Chris