How is the steering system of the E34 M5 different from the standard E34 5 Series?
Like all E34 5 Series, the E34 M5 uses a recirculating ball steering design, but the overall ratio is reduced from 16.2:1 to 15.6:1. Two types of power assistance were offered: An engine-speed sensitive system and a vehicle-speed sensitive system developed by ZF and called Servotronic, The former was fitted as standard to all European-spec, South African-spec and Canadian-spec M5s, as well as U.S.-spec M5s produced for the 1991 model year. Servotronic was available as an extra-cost option on all European-spec M5s and was fitted as standard equipment on all U.S.-spec M5s produced for the 1992 and 1993 model years. In addition, it was also included as part of the optional Nrburgring Package for 5-speed 3.8-liter M5 sedans and Tourings.
