I've heard back:
"Dear Mincey,
Thank you for your email regarding Betsy.
We entirely understand and appreciate your concerns with the news of rising theft levels in the UK, and note that we see specifically a higher rate of theft and attempted theft within the boundaries of the M25, with an apparent focus in north and east London.
Firstly I must thank you for your email and prudent request for advice in this situation with a view to protect your investment. The Lexus ES model is not one that we have seen any volume of being targeted - however we cannot say with certainty that it may not be attacked, as regrettably we cannot assume to know the motivations or indeed limits of the technology being used by current organised criminals.
It is not fully clear how thieves operate but from footage it appears some thieves have sophisticated electronic equipment and can gain access to cars by entering via the headlamps or through the wheel arches.
It is impossible to second guess the levels to which thieves will go to carry out these crimes.
We have been extremely active in working with the police and other authorities to help them tackle recent crimes such as catalytic convertor theft, hopefully leading to new legislation that makes it harder to move stolen parts on through disreputable scrap metal merchants. Car theft is another such instance where we will do all we can to help.
Lexus are in the momentum of developing some measures to assist in counteracting these theft attempts. At the present moment Lexus do not have any confirmed products or alterations that we can support, but endeavour to update the teams within our Lexus Centre network (and therefore be able to support our customers) in the near future.
We would encourage you therefore to open communication with your most local or preferred Lexus Centre about request for this support, and as soon any information is available to share you can be informed at the earliest opportunity.
I do hope that this email may help and thank you for your contact with Lexus customer support.
With very kind regards
Lexus Customer Relations Case Manager
Toyota (GB) PLC - Lexus Division
Distributor of vehicles, parts and accessories for the UK"