Missed the boat on the $150 space-saver spare. Could have put it in the build but passed. By the time I realized I should have ordered with, vehicle had started "in production" and the order could not be changed. My dealer now tells me the total of the pieces that would have been included with the space-saver spare would now be close to $500. Given the 3 year lease, I will either preepmtively purchase four OE RFs from tirerack (as low as $250 ea. ship incl) or possibly buy 4 non-RFs, pull the RFs and save them for lease end return, and drive on the non-Rfs. Either way, I think having one of these kits is wise - especially given my very rural local - so now I am just hoping to learn more about the differences to make an intelligent decision.

They all seem to warn about possible damage to tire pressure sensor from using the filler sealant but I think that is a worthwhile risk for the comfort of being able to re-inflate and drive further safely. Really now kicking myself for not adding that space saver spare with the original order (don't really need the extra storage so I have absolutely no idea what I was thinking by not adding it)!!