The first pure convertible inserted in the BMW 3 Series was introduced in 1987, it came as a 325i model. The 325i engine, though part of the same M20 family as the eta engine and having the same 84mm bore, had a 75mm stroke to drop displacement from 2,693 to 2,494 cubic centimeters. That short stroke was one element that opened the rev range a full 500-rpm higher and pushed the output to 168 horsepower and 164 pound-feet of peak torque, easily the most powerful 3 Series to that moment.

 

In 1998, a 168-horsepower 2.5-liter version of the M52 was offered in the coupe and convertible to create, oddly, the 323i Convertible and 323is Coupe. No one has yet come up with a convincing explanation for BMW's decision not to call them 325s. The M3 evolution captivated everyone with its sleek design and powerful engine. In 1998 a convertible was offered. The BMW 3 Series convertible is a fun and very sporty drive, the luxury is reeking out of it and the prestige of owning one is undeniable.