Found this while searching. I do know that Ssangyong used the M104 and other MB bits. Apparently they use at least the floor pan / running gear of a W124.

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M104 3.6 still being manufactured? - MBClub UK - Bringing together Mercedes Enthusiasts

Ssangyong in Korea (otherwise known as Daewoo) have a range called "Chairman". They have 2 ranges, "Chairman H" and "Chairman W". Check out these engine specs...

Chairmain H (1997 to present, based on the W124 Chassis), available with these mercedes engine options coupled to a 5G Tronic gearbox...

2.3 I4 150 148bhp
2.8 I6 200 197bhp
3.2 I6 220 217bhp
3.6 I6 280 275bhp <-- Still being manufactured??? (M104.941)

Chairman W (2008 to present) available with these mercedes options coupled to a 7G Tronic gearbox...

3.2 I6 XGi320 222bhp
3.6 I6 XGi360 247bhp <-- Still being manufactured??? (M104.941)
5.0 V8 XGi500 302bhp