Jack, I do think that it's best to get too tied up in average days of selling as they are exactly that..... average ! which means you could have a wee car that sells the first day it comes in and makes £700 profit , but the big chunky £40k 4x4 you have could take 91 days to sell and make you £3000 profit, the average days to sell is then 45 days! Horses for courses, always best to try and spread your stock , age, miles and price this way you don't have all your eggs in one basket, as we all know one weeks you can't get rid of |Mini's the next week there is a queue of 10 folk looking for one! Profitability is key and turnover is part of it, try and aim to turn 3/4's of your stock at least once a month if you can! The CAP book plus 3 months is normally quite accurate! Jim