The 135is is a limited, higher-specification variant of the 135i, with the turbocharged inline-six tuned to 324 hp and 430 Nm, cutting the 0-100 km/h time to 5.0 seconds. Available in coupe body form and produced through 2013, it received a sport-tuned suspension, revised styling details, and specific interior appointments to distinguish it from the standard 135i. The 135is represents the performance ceiling of the E88 generation lineup.
