What kind of gearboxes does the 3.2-liter M3 use?
There were four different transmissions used on 3.2-liter M3s. European-spec models have a Getrag six-speed manual transmission with the following ratios: 4.23 (1), 2.51 (2), 1.67 (3), 1.23 (4), 1.00 (5), .83 (6). This same gearbox was later used (with the same ratios) as the internals of the Sequential M Gearbox (SMG). The North American-spec 3.2-liter E36 M3 retains the ZF Type C five-speed manual gearbox of the 3.0-liter version, with the same internal ratios: 4.20 (1), 2.49 (2), 1.66 (3), 1.24 (4), 1.00 (5). Starting with the 1997 model year, the ZF 5HP18 five-speed automatic returned as an option with the same internal ratios used on the 3.0-liter model: 3.67 (1), 2.00 (2), 1.41 (3), 1.00 (4), .74 (5). All 3.2-liter M3s equipped with a manual gearbox (including SMG) use a shorter 3.23:1 final drive and limited slip differential. North American-spec M3s with the ZF five-speed automatic transmission have an even shorter 3.38:1 rear end, also with limited slip. In addition, all 3.2-l