Bmw 135is Vs 135i. The 135is is basically a 135i with the M Sport suspension package 18 inch wheels a power bump to 320 hp and an M tuned exhaust. The E90 335i is a bit lighter than the E90 M3 and the E82 135i is even lighter.
BMWFanatics Forum BMW Models X35 Fanatics 135 335 535 X6 Z4 S-Drive35i. Had they put an LSD in the 135i and 335i. Not sure why they refer to the N55 as 135is locally here.
Not really but then the 135i never wanted for power.
As far as I know there is no production model called 135is. Find used BMW 1 Series 135i s near you by entering your zip code and seeing the best matches in your area. As fun as the M5 is the bulkiness of the car does impact its maneuverability. All of the torque is available from just 1300.