[NickG]

• Most of all: Less crap amplifier/speakers. They sound awful compared to the standard cheapo Ford Focus stereo and seriously lack bass and midrange. It doesn't sound much better than speakphone on my mobile! I don't know if it's the speakers or the amp that's at fault - possibly both, but I'm sure the amp is seriously underpowered even for non audiophiles. Since it's impossible to upgrade, it should be better in the first place so you don't feel the need to upgrade it.
• Visual confirmation it's deadlocked. Short flash for first lock, 2-3 flashes for deadlock, long flash for unlock. Unless I've missed something, there's no way of telling that you've deadlocked the car.
• Some kind of mounting point for TomToms/Navmans etc. Windscreen too far away for taller people. A tiny 1 inch slot on the center vents that could take an optional removable mount (eg Brodit) would be great.
• Coat the rear window glass in teflon/RainX or something so the water runs off. You can't see anything when reversing if it's raining.
• Move the sat nav charger socket away from directly in front of the gearstick - and make it so the socket doesn't rip out every time you unplug something from it.
• Make the "big storage box" thingy metal and deadlock when the car is locked. I would PAY for this. I do not want to have to remove my satnav/phone etc from the car every single time I get out. Or make it lockable with the ignition key.
• Make the alumimium effect bits out of aluminium. They seem to be made of plastic. Aluminium is cheap - cheap enough to make coke cans out of, so why not spend the extra pound and make the £15,000 car have real metal metal. It's awful and most magazines have said as much.
• Adjustable lumbar support on drivers seat. To me the seat is uncomfortable and seems to be wrong curve for my back. It needs more support lower down (again, this is perfect in the Focus).