I have had my RX400 since March 08, it replaced my RX300 (after three years) both from new.

The major dissapointment in relative terms is the lack of a 6 digit post code navigation facility. The RX400 graphics have been improved but for UK usage the lack of a 6 digit post code is I feel a serious omission for a UK luxury car. Why will Lexus not get their Navigation supplier to provide this I wonder? The extre cost , if there is a real extra cost, cannot be great it is after all nothing more than a increased data base size and map position cross reference. (who will fire the first shot at that assumption?).

Has this lack of UK navigation friendlyness caused irritation with others?

I dont find it a very easy system to use, much prefer TomTom3 on my PDA in the van, still havent read all the instruction book after a year of owning it. It also has a habit of sending you down country lanes when logic says to stay on the main road. But the voice is so polite.......