Wondering if anyone has info on placing a spare in trunk for CTS-V. Not too crazy about run flat choices. Would rather go back to tires I know and trust. Spare would need to clear Brembo brakes, be 6 lug, 18" and fit into well. If anyone has any info on where to buy such spares I would appreciate it. Many thanks. InfraredV

There's a procedure and listing of parts to do it here. http://www.cadillacfaq.com/faq/answers/spare/index.html

You can most likely find spare CTSV wheels on ebay or other online sites that individuals are selling because they've bought aftermarket wheels for their CTSV. Depending upon condition, they can run anywhere from 200 - 300.00. But if it's only supposed to be a spare a little curb rash on one shouldn't matter.