20x9 on front question

[mancinia]

Any pictures or detail on the inside clearance for the rears? By my math, your wheels are the equivalent of pushing the fronts out 14mm and the rears 15.5mm, which is pretty much perfect for flushness (given that 20mm spacers are just starting to poke), but the insides of your rears are close to an inch (something like 22.5mm) further inboard, while also being bigger in diameter.

And what size tires are you running on 11s?

The rears are TIGHT! With 295's on the 11' wheels, it actually rubbed the insulation off of one of the wheel speed sensors and starting causing a fault. I had to slightly bend the bracket to provide millimeters of clearance. Other than that, no issues with anything. My car currently sits on stock suspension, but I really want to drop it a bit. Attached is a better picture. I am considering ARK-GTF springs. Previous to the wheels I have now, I did have 20mm spacers on the all fours corners with stock wheels. The back wheels sat perfect, but the front did "poke" just a bit more than I liked, in my opinion.

 

[Thomby]

With 295's on the 11' wheels

That's about what I figured, and a ton of rubber, but I was kind of hoping you'd say something ridiculous like 315s.

Either way, 20x11 +50 is a great data point, as I don't have nearly as good a feel for what kind of room we have on the inside vs. outside face.

 

[ElChanclo]

20x9 +35 offset up front and 20x11 +50 offset in the rear. No spacers. I think it's a perfect fit! I say go for it!

The rears are TIGHT! With 295's on the 11' wheels, it actually rubbed the insulation off of one of the wheel speed sensors and starting causing a fault. I had to slightly bend the bracket to provide millimeters of clearance. Other than that, no issues with anything. My car currently sits on stock suspension, but I really want to drop it a bit. Attached is a better picture. I am considering ARK-GTF springs. Previous to the wheels I have now, I did have 20mm spacers on the all fours corners with stock wheels. The back wheels sat perfect, but the front did "poke" just a bit more than I liked, in my opinion.

Very interesting, 20x11 + 50 with 295, what profile?

That's 35.3mm closer to the suspension strut, and with the rubbing I'd say 30mm inward is about the limit for the rears on a Stinger.

So 295/30(?) on 20x11 +45 would probably be the maximum with keeping the ET near OEM (+46.5).
And 27.7" OD (705mm) is the biggest tire you can fit up front, so with AWD it'll be the same OD limit in the rear.

 

[socalvn]

10.5 45 with 285 lots of room to spare its all about the back spacing

 

[Thomby]

Oops looks like one part of my math was bad, I must've used 9.5" as stock rear instead of 8.5". So an 11" +50 is 2.5" wider than stock, and mounted 3.5mm further out (vs. stock +46.5 offset).

So outer edge is 28mm further out than stock (good bit further than stock wheels with 20mm spacer), and inner edge is 35mm further in, as @ElChanclo mentioned.

Very aggressive, but if it fits...