[mourati]

How many flat tyres are you predicting will happen in the life of a car?
All depends on a number of variables and where you drive etc., but space savers are designed and intended for any side of the vehicle (front or back) - they save fuel too due to reduced weight, and buying a full sized alloy (or steel) wheel and tyre for the "what ifs" when you have one designed and installed already in your boot is a question over spending the money for how much gain in the event it happens for a situation where you'll be repairing the flat maybe days after it occurs?? just my views having worked in OEM industry for many years until they decided to close the rollers doors!!!