Well I never !
The main reason for this is that insurers have noticed that motorists with riskier profiles often tend to opt for
third party car insurance policies and because they go on to make more claims, it bumps up the cost of this type of cover. Therefore, even if you're trying to keep the cost down, you may find you don't have to cut back on the level of cover to do so.
Funny how this thread has gone from tyres to insurance !