My mum asked me to have a look at her tyre, they are on a LandRover Freelander. Plenty of tread but cracks forming near tread pattern, worse on the r.hand side but also the l.hand side looks to be deteriorating in a similar way. She doesn't do many miles but will soon be doing 2hr journeys to and from Anglesey. My dad will be with her but can no longer deal with this sort of situations due to Alzheimer's For peace of mind and safety I am tempted to say, get it done. Thoughts ? Also bearing in mind they are big, chunky tyres,can you get any that are more economical and efficient?