Иногда трудно понять, зачем вообще нужен Google.  

Specification   Extras that were 'standard' in every 850CSi
Euro   USA
×   ×   Engine S70B56
×   ×   6-speed manual (automatic not as an option)
×   ×   Final drive ratio 2.93:1
×      Final drive oil cooler
×      Engine oil cooler
×   ×   Stiffer suspension (No electronic damping control available)
×   ×   Chassis lowered 15mm
×   ×   Servotronic, motorsport specific
×   ×   Limited slip differential
×   ×   Automatic Stability Control + Traction (ASC+T)
×   ×   Aluminium wheels with brake ventilation
×      Active rear axle kinematics, motorsport specific
×   ×   Electric steering wheel adjustment
×      Stronger brakes
×   ×   Upgraded front and rear spoiler
×      M-design door mirror
×   ×   Dashboard with red pointers and different looks
×   ×   850CSi-badge
×   ×   Folding rear seat backs and ski bag
×      M-Interieur (Bicolor)
×   ×   Leather seats
         ×   BMW Motorsport' written on doorhandles
×   ×   ///M emblem embossed in lower door frame
+ пара вещей еще здесь:
Though lagely similar in specification and appearance, the U.S.-spec 850CSi 
was denied the following items, largely for cost reasons:
-Engine oil cooler
-Transmission oil cooler
-Active Rear-Axle Kinematics (AHK)
-Upgraded 13.6-inch front brakes rotors, all rotors with "floating" design
-Smoked front turn signal lenses
-M aerodynamic rear-view mirrors
However, U.S. models do include exterior door handles embossed with "BMW Motorsport" and Extended Yew wood interior trim, both items not normally found on the European-spec version.
Пруфлинки:
http://www.e31.net/models.html#Anfanghttp://www.bmwmregistry.com/model_faq.php?id=11