This thread is as interesting as it is continous, depreceation will be with us as long as we buy cars that are mass produced for the consumption of the general public and not aimed at specific markets such as supercars or limited editions.
The interesting bit is the wordwide values put on the Lexus LS range .as as been stated by other members .
Lexus cars in Australia have better residual values than UK models One might assume that is because there are less sold there than here ,if that being the case why do like for like models in the USA fetch twice as much as UK models where there are thousands more than there are in the UK.
The economics have a say in it ,for example the US dealerships lease a lot of high end models to the private buyer for three to five years the aim is to make as much money from the vehicle and keep depreceation to a minimum, financial penalties for high mileage and poor upkeep help to ensure this. The lease financer then sells them into the open market usually through dealerships as one owner cars , vehicles will be sold with all kinds of warranties and this ups the resale price, that price keeps the earlier models prices higher as does the buy your last car debt system that operates in the states.This is when you trade in your car with its outstanding finance and that debt is added to your new car .
So what is happening is the value of second hand cars in the states is artifically high due to inherent debt.
If you add the popularity of the Lexus brand then the price is affected by supply and demand factors especially in used cars.
We should thank our lucky stars that the Lexus LS brand as never really caught on here in the private sector and we benefit with cheap purchases from the mainly corporate dominated sales.