Launched at the 1992 Geneva Motor Show, the all-new Alfa Romeo 155 would form the basis for two distinct touring cars that both debuted in 1993. This coincided with the adoption of a new set of regulations that distinguished between the altogether more liberal Division 1 (D1) and the tighter Division 2 (D2) categories. D1 was used only by the German DTM series, whereas most national and international series embraced D2, which was similar to the Supertouring rules…