I'm taking delivery soon of a Range Rover fitted with IR keys (the same system BMW used to use, as it is a vehicle from the period when BMW and Ford were buying and selling the company) which is apparently because it was originally shipped to Japan where I guess the standard radio keys were not preferred.
Is there any material difference between the two systems to be aware of? I've had lots of cars with radio keys but none with IR ones, so was wondering if there were any security issues etc to be aware of. The internet remains strangely silent on the topic!