I have one problem I'd like to discuss: the tank is 1/4 full, the car runs fine, except when I floor the throttle and accelerate to high(ish) speed - for example, on the entry ramp to a motorway. When I do that, it gets up to about 70mph and then cuts out (or radically loses power). If I ease the throttle it recovers almost immediately.
My searching suggests that this is typical of a failed in-tank pump. However, I can hear it running. I switch on the ignition but don't start the engine. The under-bonnet pump is very easy to hear if the bonnet is open. If I open the filler cap and listen carefully I can hear what I assume is the ITP. However, it doesn't make a nice, smooth buzz. Rather, it has something of a warbling quality to it.
Is this normal? Or does it suggest a fault? Can anything else cause these symptoms?
I should mention that I'm intending to take it back to the dealer to get them to look at it, but I want to be up to speed on it myself so I can be an "informed customer".