The outsides of both rear tyres are almost down to the limit but the insides have twice as much at least,,
I don't go mental that often when cornering,, should they be aligned? Camber not tight?

 

I mean right not tight

 

Get a full alignment done. My right rear was down to the steel belt versus the other tires that all looked relatively OK. Drove 100% better after the alignment too, hadn't realized how fidgety it had gradually gotten over 3 years.

 

Thanks
​​​​​​​It's only 2 years old tho,, warranty?

 

The camber is not adjustable on the rear, though you could fake a negative camber adjustment by lowering the car.

 

Alignment is only covered under warranty for the first year.