Also this. It's a Windscreen Washer Reservoir tank from a TDCi Mk6 Fiesta. It fits in behind the Air Conditioner Receiver/Dryer and in front of the drivers side wheel arch. This leaves the space behind the passenger headlamp for the Electric Power Steering Pump, which is where our Washer Tanks otherwise normally sit.
This is an image of a TDCi showing where the tank sits:
And where the tank filler neck pops out:
And the space where it will fit in my shed hack:
Versus the location of the standard tank:
Lukeyson