Out of shape tyres

[mannyo]

My D3 is currently in having the NSR wheel bearing changed and the mechanic has noted that the front tyres are out of shape. These tyres were replaced with brand new ones earlier this year and have covered about 6K miles. He has described them as egg shaped.

For a while I've noticed that there is sometimes vibration from the front of the car and a weird braking sensation again sometimes. Looking for suggestions as to possible causes. I guess the vibration is because the tyre is no longer round, which could also be causing the odd feel when braking.

I am popping up to the workshop later this afternoon and he is going to show me the tyres whilst the car is suspended in the air.