Car trading limited by Patch 1.07

You can read the full patch notes here. Among changes on the list appears a limit to trading of cars above 1 000 000 Cr value.
The value of a Used car is not based on the price you buy it, but on an invisible internal value which is slightly higher ; concesquently, most cars that are priced around 980 000 - 999 999 Cr can't be trade either. Here's a link to the GT5 car list ordered from most to less expensive.

UPDATE : The "my page" and compare garage page now filters cars you can't trade anymore.