If you only drive a limited number of miles each year inform your bmw aa car insurance of your typical yearly mileage whislt filling in the online form and they may offer you a lower quote.
If you have previously been banned or currently have lots of penalty points you can still get insurance but most likely at a higher rate.
If you've had an accident don't get any repair work done until you have cleared it with your car insurance company first. It is possible to choose a car insurance company who have agreed car repairers, to save you driving around getting quotes. They normally gaurantee their work also.
Be sure to read your bmw aa car insurance policy carefully to ensure it provides you with the level of coverage you require. Not just the key features but also the small print. If you are unsure about the meanings, try and get someone to help you with the understanding.