In Most cases you cannot build up any No Claims Bonus by being a named driver on someone else's policy. Check for the exceptions, there are a few. This could be an advantage for spouses or young drivers.
Until your insurance company issues you with a cover note or a new policy then your car is not insured. That does not mean you need to have recieved your cover note. Many comapnies, give you instant cover, where the agreement is there imediatly.
We have a list of various providers of motor insurance who claim to supply you with quotes that won't cost the earth
