5 stars if you make all the windows transparent! (I know in real life that the rear windows are tinted black, but the default automation windows are really ugly imo, and just having half the windows transparent and half of them opaque black really looks out-of-place - hopefully, this shouldn't be too hard of a fix, which I imagine it isn't!)
The cars look great but what the heck is going on with the engines and transmissions. Why would a new S600 have a Boxer6 engine and why would an early 2000's S-Class have an 8 Speed Auto, it should be a 5 Speed. The S600 should always have a V12.