Hello, I thought one of the front tyres on the wife’s car looked a bit too squishy so went to put some air in and discovered a rather nasty looking gash about 3cm long on the edge of the tread.
I've wet the area and it doesn't seem to be leaking, what to do?
1. Leave it until it needs replacing?
2. Get one new tyre, replacing only the damaged front?
3. Get two new tyres for the front?
If I do replace, where is the best place to get some new tyres from? Thanks.

I've wet the area and it doesn't seem to be leaking, what to do?
1. Leave it until it needs replacing?
2. Get one new tyre, replacing only the damaged front?
3. Get two new tyres for the front?
If I do replace, where is the best place to get some new tyres from? Thanks.

