>>I knew there was a reason for gun ownership in the US.
>>
>>
>>http://news.bbc.co.uk/1/hi/world/americas/7091904.stm
>
>Since when tyre spells with a y? I always knew the "Tire" version.

They are synonyms. http://www.thefreedictionary.com/tyre http://www.thefreedictionary.com/tire