Thanks for that piece of useful info MokkTheWeek... The law indeed is an ass if it's happy that a tyre a little over 12cm wide contact patch and over 4 inches less diameter is a better option than a tyre which is the same width contact patch as the factory fitted item and just over 2 inches less diameter. I know which one I'd prefer to fit should an emergency occur.The above spare wheel will function better than the space saver, unfortunately it will also be illegal, it is illegal to have odd sized tyres on the same axle on any road vehicle, the only exception being the manufacturers approved "temporary spare". Buying and fixing one of the "max 50 KPH" stickers and keeping below that speed will decrease the likelihood of being nicked, but the spare wheel/tyre combination is still not to manufacturers approval and carries a risk. And yes, the law is an ass!