In the broader PC gaming context, a "repack" is a version of a game that has been recompressed or repackaged by a third party, often for easier or smaller downloads. This is a common practice for pirated copies, and such repacks of the base Assetto Corsa game exist. However, the more likely and legitimate scenario is that the "repack" refers to a modified or updated version of a car mod.
Thanks to its rear-wheel-drive layout, the IS250 makes an incredible drift missile. The drift spec in the repack strips out excess weight, installs a welded differential, alters the steering geometry for maximum angle, and adds a high-revving tuned engine note. assetto corsa lexus is250 repack