Spoke to a Guy who reckoned a Clifford Black jack is the way to stop your car being hijacked or going with the keys?
Anyone know how they work? If there any good and how much? Anything better?

 

They progressivly cut the IGN if the code is not put in stops the car progressivly.
£200-£250 fitted,well worth it

 

That'll do on the details

There is another system from SPAL - have a look a couple of weeks back

 

The blackjax has a two button switch on the dash,when you shut the doors and start the engine you then enter a secret pin code on the switch which disarms the system,if at any point the doors are opened whilst the engine is running say your getting car jacked the blackjax then monitors the r.p.m. of the car and brake pedal,if the brake pedal is pressed and the r.p.m. falls below a certain thresh hold the blackjax will beep the siren three times and flash the brake lights continously which then you get approx twenty seconds to re enter your code if you dont the blackjax will kill the engine and sound the horn and flash the brake lights for thirty seconds or so and the car remains immobilised.Like wise if some one steals your keys and drives off in the car it will start the blackjax count down timer again.