the b202 was still being produced in 1993, but for the new generation saab 900 being released in 1994 a new 2.0l engine was required. this new engine, the b204, was based on the 9000's b234, but in order to make the engine fit in the 900 the engine had to be shortened. this meant that a new chain drive for the camshafts was required to reduce the length of the engine. the b204 engine was available with natural aspiration in 900, 9000 and 9-3 in the form of 2.0i (b204i), with a low pressure turbo in the form of 9000 and 9-3 2.0t (b204e) or saab 900 and 9-3 2.0t (b204l). b204r was briefly available in the 1999 9-3 aero (u.s. market 'se') model. b204 was in production in the saab 9-3 until 2000, when it was replaced by b205.