In the lead preface, the BMW 128i Coupe is prepared with a usual 3.0-liter, I6, 230 horsepower steam engine that achieve 18-mpg in the city and 28-mpg on the highway. A 6 - velocity labor-intensive program with overdrive is average and a 6-alacrity mechanical spread with overdrive is elective. The 135i Convertible is prepared with a standard 3.0-liter, I6, 300-horsepower, turbo engine that achieves 19-mpg in the city and 28-mpg on the highway. A 6-speed manual program with overdrive is standard, and a 7-speed physical diffusion is voluntary.