Most of the steeringwheel-locks are very flimsy except for the big discs covering most part of the wheel (which are heavy and clumsy when not in use). Stay clear of the gadgets connecting one pedal with steeringwheel and the sticktypes wich try to prevent turning the wheel, most steering wheels are easy to saw through (bend a bit and you slide the lock of the wheel), same goes for some of the ones connecting gearlever with handbreak (gearlevers can be sawn through or even just turn the knob of the lever and you can take the lock off). Best models are the big discs with a stick to prevent steering, and the ones which locks two pedals together (preventing the pedals can be pressed). Apart from the model the lock itself is off corse the most important factor. One of the benefits of this kind of locks is their psychologic factor, you can see them in plain sight alarming uninvited chauffeurs in flashy colors.
As others stated stay clear of electronic immobilisers especially aftermarket types. Although if it's already there you can use it but try to figure out how it works/behave after a powercut/reset and incase of damaging/drawning or loosing the radiobutton. This can involve a hilarious ritual of opening doors an turning on/off the contactkey a few times in a specific order and duration, at least on the one I've got. Try picturing that on a crowded marketplace while sirens are deafening you and all the lights are blinking.
A mechanical immobiliser is the way to go, as said before a main powerswitch or a fuelline valve, or some secret switch tucked away in dashboard instead of contactkey for starting the engine. You can think of something.
BTW if someone wonders how I get this info
, I invested some time in this after my old HJ60 had some attention wrecking the doorlocks one by one (good locks!) in the streets in my hometown.
Originally Posted by Sam Rutherford
I once met a guy who had his steering wheel bolted on with lots of grease, and then held with a split pin. Took him less than 20 seconds to remove the pin, spin the bolt and take the steering wheel off!
Great idea, but somehow I cannot see myself walking around town with my steeringwheel in one hand...
bart & sophie