BMW hasn’t ruled out the option of producing the 1M CSL, according to a UK BMW product manager. The unexpected success of the 1M and low production numbers have driven up the demand for the fast, light BMW.
The UK was only allotted 450 1M cars. 300 of them were already sold prior to its official launch. This is enticing BMW to look at another avenue of production: The CSL.
The current 1M Coupe makes 340-hp and 332 lb-ft of torque from a turbocharged inline-six cylinder engine and gets an extra 37 lb-ft thanks to an overboost function. Paired with a 6-speed manual it can hit 60 mph in just 4.7 seconds. Plus, it weighs 77 lbs less than the factory 135i. A CSL (or perhaps GST) version would likely go further down the road to reduced weight savings.
[Source: BMW Blog]