The problem with Range Rovers with regards to insurance is they are getting nicked right, left and centre at the moment, thanks to this marvellous technology of keyless entry. I’ve been told it’s near on impossible to get one insured in London. I don’t know if smothering one with anti theft devices would do much to an insurance policy on one but I’d advise anyone with a keyless entry high end car to do so

ideally bling bling cars need to be garaged imo but if not they need as many layers of security as possible keys kept in faraday pouches or a metal tin, disc loc, decent alarm and immobiliser, tracker, security posts etc