Does it contain lead? If so, don't get it near your Mercedes.
As the others have described, you won't benefit from it unless you have raised the compression and advanced the timing to the point where you *need* it to avoid pre-detonation. It's all risk, no reward in your case.
Don't let it sit though. The hot stuff looses it's pop quickly. You could probably find a local racer or dirtbiker who would give you some $ for it.
Experience is something you don't get until just after you need it.