Im 20, coming up for 3 yrs ncb in June, fully comp with norwich union direct, with 3 points for an SP30 and iwas paying £1500 but i added my mum and it reduce to £1290, added my dad and it reduced to around £1100, added my girlfriends Dad and it dropped to £975, but i think they started to sus me out because when i added my Mrs's mum, who has squicky clean licence and no claims for like about 200 years, and it went up to about £1900!! They literally pluck a figure from a bag like the lottery. (my figures were based on a Cat 1 alarm fitted, and parked on driveway outside my house.-medium crime rated area) Hope you get a good price.