In order to give themselves a greater range of groupings, the insurance companies are changing from 20 groups to 50.
In order to be where they were on the scale in 20 groups, the grouping should have increased by two and half times. So 20 times 2.5 is 50. The TS2 should have gone from 4 to 10, so 11 indicates that it has gone up slightly - however I think it was a 4 in past due to the security features, when it should have been a 5.
That is very roughly what has happened.
I'm pretty sure My 2003 model TS2D is still insurance group 3...And only £35 a year TAX!
