Hi, I have a 2003 C5 estate, the spare tyre has never been used it is 205 65 R15 H94 Michelin energy. This week my wife got a puncture very near home.I put the spare on went to the tyre man and he said the tyre cannot be repaired, all the rest of the tyres are Hanook 215 55 R16, I messured the diameter of the rims and they are all 17 inch except the spare which is 16 inch, so my question is can I use the new spare and what tyres should I buy?