I prefer someone selling a car who is honest about what they think of the kit it comes with, rather than a lot of main dealers who will tell you how you absolutely need lane departure warning or automatic parking, just to snag an extra £1500 (or more!) off you. My Vectra has no digital parking aids whatsoever - I just wait for the crunch of the towbar going through someone’s grille to confirm that I’m as far back as I can go 🤣