Blue Verso,regarding some of your posts; You said Quote' I have a new Prius with no front sensors and to be honest do not find it much of a problem and I am £466 better off .I was just curious to why Toyota are saying they are unable to fit them when they can’(end of quote) So you don't have enough of a problem with parking to need the front sensors and by not having them,you save £466.What’s the problem then?You say you don'’t need the sensors,yet your only reason for asking your dealer and another dealer,and for contacting Toyota customer services,is by your own admission,your curiosity. Surely that's a waste of your own time,the dealers’ time and Toyota customer services time, they have genuine questions to answer from customers,they aren’t there to satisfy your curiosity. You said Quote; '‘Regards going to the dealer that will fit them a 700 mile round trip is not really in the equation’'(end of quote) So why did you contact that dealer if it is too far away? There must be other Toyota dealers closer to you than that. You said Quote; 'I would like to know the technical reason why they are unable to fit them rather than they cannot be fitted full stop with giving an explanation ...it is hardly an in depth technical question to which that I will benefit financially from it is more a sales enquiry’' (end of quote) You seem to be contradicting yourself,you say you want to know the technical reason,then you say it isn’t a technical question,but a sales question. Its not a sales question as you are not looking to buy anything. You said to Red Yaris,Quote; ‘'You seem to be trying to blow this thread up into a full scale argument well that is one way to increase forum activity'(end of quote)’ I don’t think Red Yaris is trying to create an argument,he is just giving you the facts.There is no need for any attempt to increase forum activity,as this forum is already quite busy every day. You have already had suggestions from other members,yet you are not satisfied. Someone even gave you the email address you wanted. Kingo has explained why you have to pay for the call. I have yet to come across any customer service department for any company which does not charge a premium rate. Maybe you are hoping someone will give you a DIY way of installing these sensors?