Thanks for your reply to my excessive fuel queries. I try to drive as sedately as possible. I alternate between e10 and regular unleaded petrol but have never tried premium. The pedal has never been down to the metal yet, as opposed to the brake pedal which often sinks as low as the carpet,(Toyota service say this is acceptable too) . The air is on about 50%of the time and I only used the paddle shifters during the first week of owning the car, just to see if they worked. Since then I just leave it in drive. Tyre pressure is checked monthly and always seems to be ok. I've never had the high pitch whirring noise but just this week the car has developed a metallic ticking noise, which seems to be coming from the gear stick area, when the car is being accelerated from a standstill.I hope it goes away but I've got my doubts. Maybe I should drive a bit harder through the gears and see what happens to the fuel consumption.