Can you recommend a tracker with long standby time?

We want to fit a tracker to our WW2 Willys Jeep in case it gets stolen. It is particularly exposed so we think a battery powered independent unit would be a good option - one that is not wired to the vehicle...

Buying a new BMW - should I have a tracker or kill switch installed?

I have a new BMW on order, would it be sensible to have an auto electrician fit a hidden kill switch, so it can’t go missing? Or fit a tracker?

What tracker systems do you recommend?

I am buying a 2016 Range Rover Sport and my insurers say I must have a tracker fitted. Is there a way to check if it already has one? Do you recommend a particular type/model? Must it be with a monthly...