Just wanted to let everyone know who has a 2011-2016 Regal GS with the big Brembros up front that I just purchased a spare tire from a company called Performance Spare.
BUICK REGAL GS (PRE-ORDER)
The website is a little screwy, but you can find the kits for the Buick Regal GS under the 'products' tab. It still lists them as pre-order, but I was possibly the first Regal GS customer.
got mine today, and it installs/clears the brakes perfectly! I'm glad not to rely on the fix-a-flat supplied by GM. Also note that the regular Regal (non-GS) spare won't clear the Brembros up front. The Performance Spare is an 18in wheel with a full-speed rated tire--no 55mph limits. Still, just remember that as-is, it's a touch smaller than the stock 19/20in GS wheel and tire combo, so when installed on the front tire, the car will pull away from the spare while driving and pull toward the spare when braking. The IS EXPECTED and a result of the slight size difference. Otherwise, it's not meant for long-term use, just long enough to get you home where you can replace your full size tire. It works great and fits (with the jack supplied in the kit) in the trunk/spare wheel well! (I'm not sure a stock-equal diameter spare would have fit in the trunk well.
I did order the GM retaining nut (part no 1161908) and used it to secure the jack in place. I did place two thin, small terry towels between the jack and spare to protect the spare's finish from scratching. Als, there was just enough space around the bottom to store the jack handle/lug wrench, etc. (DO NOT order the foam insert from the base model Regals to hold the jack/handle/etc. It won't fit underneath the Performance Spare.)
Anyway, hope that helps! See the attached photos. For now, be a little patientwith the guys at Performance Spare--they just got these in and are shipping out the pre-orders, so it may take 2-4 weeks until yours arrives. Tell Randle that Paul in Brmingham sent you!