car looks great! What are the tires and tire sizes you are using? I think you may feel the rear is not as low as you would like because the rear tire looks slightly under sized or stretched across the 19x12 rear rim. With a 19x12 wheel you should be using 305/30/19 tire size minimum. A nice alternative when you need new tires is to go 245/35/19 fronts and 325/30/19 for the rears in order to keep a safe front to rear wheel ratio and not harm any all wheel drive parts.. That would definitely fill in any remaining gap issues you think you may have. These are all personal choices of course. It looks really great as is and I am sure looks even better in person, congrats!

 

Wheels look great.

 

When I got the wheels two years ago I was running Michelin PS2, stock size 305/30 rears. I guess because the rim protector the looked stretched since the wheels are 12 inch wide. And yes as you suggest I considered going wider front and rear, but thought that is overkill for a standard C4! I think even the 305s are a bit of overkill for the 3.6 cars. Don't want to add more unsprung weight that I had to.

When I had to replace the tires I went with PZeros N2s that don't have the rim protection and seem to run a bit wider and match the 12" wheels pretty nicely. I know these are not the popular choice but they worked fine so far. Pic from last year:

 

Another pic showing the drop at the rear and tire fitment. I also removed removed the rear emblem and thinking of replacing it with the "911" emblem.

 

Very nice! Based on the last pic, offset looks perfect in the front.

 

Your car looks great!

 

Wheels look great! Like the black accent. Getting ready to add black lug nuts to my HRE's

 

Looks fantastic. Classic wheel for a classic car.

 

Very, very nice.

 

Looks fantastic with great fitment. How do you like the ride of the new springs? Does the progressive rate handle the subtle bumps like OEM and is it truly stiffer when pushed hard with reduced roll?

 

I don't have PASM, the ride was pretty close to stock which is on the firm side. Handling is also about the same, maybe a bit flatter thru the turns but I've had them so long now I can't say for sure! Overall ride stays close to OEM but lowered ride height which was my goal. The non-PASM cars ride so high to me, this was an easy choice!