First let me say I'm torn on this subject. I see valid points for both positions.
Let me ask this, when was the last time you used your spare tire? Me, it was probably 1989 or 1990. That doesn't mean I haven't gotten nails in tires but I've always caught it and repaired the tire before it went totally flat (I plug my own tires). Most of the time is was in my driveway and I either saw by chance or was inspecting the tires. Once I even heard the nail while driving. Plus, TPMS systems warn drivers long before the tire is too flat to drive on.
Second, people like to claim this is a safety hazard but I say it's much safer (and faster) to use a can of sealant and a pump when you are on the shoulder of a highway than it is to jack the car up and swap tires. Especially if it's on the driver side of the car.
Third, who wants to jack up a car to change a tire in bad weather or when they are dressed up? Again, the sealant and pump are much quicker.
Lastly, most cars come with roadside assistance that will come out and repair a tire or at least get you to a repair shop.
Remember, car companies cater to the majority of drivers and as unfortunate as it may be, the majority of drivers do not want to change tires themselves so they don't mind that there is no spare or jack. The majority wouldn't know how to use it anyway. For those of us that still do things ourselves, you can buy the spare and jack optionally as an accessory.
Last edited by NovaResource; 03-06-2012 at 02:16 PM.