Although the name of this model has not been officially announced yet, those from BMW are still testing the M version of 1 Series, equipped with a turbocharged engine capable to develop 350 hp. BMW engineers continue the tests for BMW 1 Series M Coupe. The exact name of this model is not known yet, rumors range between 135is and M1.
Using the name of the famous M1 would conflict with the supercar of the German manufacturer, while 135is may not accurately reflect the performance of this model, but would be very close to the new 335is, a model launched in the United States of America. Until then, remains to observe the test model’s features from the photos surprised by Carpix.
This model will be equipped with a turbo engine based on the M54B30 propeller. Unlike the 135i, the M version of this model is no longer using the N54B30 propeller because the M54 engine’s block is stronger at a higher pressure, which will generate an additional power for the customers of this model. In the first phase it may be 350 hp for the smallest and cheapest M model, which is 48 hp more than the power developed by 135i and 70 hp less than the one offered by the M3′s V8 aspirated engine.