Yup
Ex Thames Valley/Bedfordshire... be aware that low (ie below 100k ) mileage generally means that the car spent most of it's working life in the workshops...
Had a look at three at one auction: one had 45k and was cosmetically ok, mechanically donald... was dripping oil and water on the floor
second had 76k and was generally rough and barely running, whilst the third had just over 100k looked like it had been on the touring car circuit but ran really sweetly enough.
Apart from Met cars, which do no miles due to never crossing the M25, any half decent ex plod purchase should have 100k as a minimum, and if at all possible, try and buy petrol
Also, if you're wanting to go down the Vectra estate route, then my recommendation would be either the 1.8 or the 2.8, manual depending on your need for speed...
If you're considering the plod route, then consider a visit to WOMA,
www.woma.co.uk over in Witney... they hold a plod sale every other Thursday...