Having test driven a Y Reg 406 a few days ago, I now find myself eagerly looking for one, but slighly older ! I'm not sure what trim level of 406 I tried but it had a trip computer. Which year & model introduced the trip computer ? The comp was forecasting 50mpg is this realistic ? Is Air Con std in all of the HDi variants ? I'm really quite smitten.....gotta get one ! Col