Thanks for all the comments and support, it is an unfortunate world that we live in where thieves seem to be largely free of being held accountable for property related crimes in the UK. I really liked my Toyota Hilux and will properly end up with another one. I spent some time reading and looking at security solutions that are used in the UK, New Zealand, Africa & Australia to try to prevent theft, as mentioned by others it is the basic mechanical devices like pedal lock boxes, steering wheel locks that create more work for a thief. Needing more time may make a difference to the thief and they may pass on trying to take your vehicle. These devices are a major inconvenience for the owner and driver as we have to fit and unfit every time we want to use our vehicles.
Immobilizers, additional trackers, hidden switches are all good ideas with different degrees of success, depending upon the skills of the thieves. I believe that most of these thieves are pretty skilled or have been trained and educated by the people that have this knowledge. Again all of these additional items can come at quite a cost to the owner.
It's time that we need to demand better of our police and crime system to fight all levels of crime and make people accountable for all types of crime in the UK. I personally split my time between the UK and the US, the approach to crime is certainly different in the US! I'm not sure we have enough prison space to make people accountable for crime or to be able to impose meaningful detention sentences. Even if they are caught it just seems a slap on the wrist is all the system can give out.
As others commented on pedal lock boxes, I was impressed to stumble across Tran Lock of Redditch, it looks like they make a great product that would make thieves pass your vehicle by. I will certainly be buying one if I buy another Toyota Hilux, I just hate the thought of having to live in such a way where I have to fit this device every time I leave my vehicle in public.