Saab 9-3 the standard offering, and a "HOT" (B204R, 200 hp) variant in the SE models for the 1999 model year. The 2000 model year saw a revision from SAAB's Trionic T5.5 to Trionic 7 engine management system. The T7 based engines were the B205L with and the B205R HOT engine with . The first generation 9-3 was also the first Saab available with a diesel engine, a unit also found in the Opel Vectra, Astra G, Signum, Zafira A. Unlike the Saab 900 (NG), the 9-3 is fitted with a CAN bus like the Saab 9-5. A Saab innovation is the
Order-7-3 triangular honeycomb geometry of hyperbolic 3-space, the order-7-3 triangular honeycomb (or 3,7,5 honeycomb) is a regular space-filling tessellation (or honeycomb) with Schläfli symbol {3,7,5}. It has five order-7 triangular tiling, {3,7}, around each edge. All vertices are ultra-ideal (existing beyond the ideal boundary) with infinitely many order-7 triangular tilings existing around each vertex in an "order-5 heptagonal tiling" vertex figure. In the geometry of hyperbolic 3-space, the order-7-6 triangular honeycomb (or 3,7,6 honeycomb) is a regular space-filling tessellation (or honeycomb) with Schläfli symbol {3,7,6}. It has infinitely many order-7 triangular tiling, {3,7}, around each edge. All vertices are ultra-ideal (existing beyond the