Even though I would normally agree with what Gices has already said, I must point out that your daughter could actually get a discount when taking out a car insurance policy. If she had not made any claims during that year this would lead to a 1 year NCD for bikes. I personally know that companies such as: Tesco, Direct Line, or Churchill will accept NCD earned on a bike policy and will therefore be able to offer discounts on their car policies. I hope this helps.