The "regular" 100 hp 2000 sedan appeared a year after the 2000C. It was sold from 1966 through 1972. Intended as an upscale version of the 1800, the 2000 featured distinct wide taillights, more exterior trim, and unique rectangular headlights. The American market 2000 sedans could not have the rectangular headlights due to government regulations. A different grille with four individual round headlights, similar to the design that BMW later used in the 2500 sedan, was offered in the US.

A 2000TI model, similar to the 1800TI, was built with twin Solex side-draft carburetors with 120 hp (89 kW). However, the 2000TI retained the '1800' taillights and headlights. A more luxurious 2000tilux featured the sporty TI engine, a wood dashboard, and optional leather seats. In a 1967 test, Road & Track felt that the 2000 sedan was "the best performing 2-liter sedan in today's market and the best handling and best riding as well." The 'tilux produced 135 hp (101 kW) and 123 lb·ft (167 N·m) gross.

Finally, the 2000tii ('touring international, injected') was BMW's first fuel-injected model, featuring a higher-compression 2.0L engine and Kugelfischer brand mechanical fuel injection that later found its way into the 2002 Turbo and other models. 1,922 2000tii cars were built of this final New Class sedan model.