You can see from table for 3 cars,the premium rather than your existing because they can not provide fleet discount, We apologize that not to be the best quote for you but there is only SAFETY insurance that premium quite similar to your existing because they can provide fleet discount and if you insure 3 cars with the same company,It will be easy to manage.
However,If you agreed with this premium,please let us know and we can proceed for you.