Let's see how far we can carry it on and see if we can work out what cat 21 could be then if it existed, this is obviously just for a bit of fun,
cat 1 = alarm + immobiliser
cat 2 = electronic immobiliser
cat 3 = mechanical immobiliser
cat 4 = wheel locking devices
cat 5 = dog in the back
cat 6 = ??
cat 1 = alarm + immobiliser
cat 2 = electronic immobiliser
cat 3 = mechanical immobiliser
cat 4 = wheel locking devices
cat 5 = dog in the back
cat 6 = ??
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