Found this info in German magazine Autobild:
A 100 year anniversary edition based on the i8 built in 100 examples. Stronger e-motor and 2l 4 cyl instead of the 1,5l 3 cyl engine. Originally planned to be developed by the M division, but now headed by BMW AG and ex Ferrari man Roberto Fedeli. Naming still debated, could be i8S, i8CS or M100
And a 630hp twin turbocharged I6 version rumoured for … CONTINUED
Automobile has posted what it thinks are details behind the BMW i8S, a supercar that will celebrate BMW’s 100th anniversary in 2016.
In 2016, BMW turns 100. There will be plenty to celebrate in that centenary year, including the first fuel-cell-powered BMW (based on the 5 Series GT) as well as the first model co-developed with Toyota, namely the Z4 replacement. With the passing of that milestone, BMW will launch a new green supercar — aptly codenamed M100. Almost certain be badged i8S, the … CONTINUED
Are there any M versions of i cars in the pipeline? No, according to Cypselus von Frakenberg, BMW Group head of technology communications. Speaking at the Frankfurt IAA show, Mr. Frankenberg says that not only was there zero input from M engineers in the development of the i8, but there will be no M version in the future. In his words:
“It is separate – M and i,” he begins. “It’s two different sub-brands, but there will be no ‘M’ i-car in the future.
“These [M] are … CONTINUED
BMW’s highly anticipated i8 plugin electric hybrid sports car is not due until 2014 but CAR claims to already have the skinny on the production i8′s specs and performance data, as follows.
Powertrain / Drivetrain
The gullwinged production i8 is reported to weigh 1,450kg (3,196 pounds). Its 170hp electric motor drives the front wheels while a 223hp / 295lb-ft turbo 1.5L 3-cylinder engine powers the rear wheels. Combined hp and torque figures are 393hp / 406lb-ft torque, more horsepower than the concept’s 349 hp and the same torque … CONTINUED
Previous rumors have speculated that the Vision Efficientdynamics production model would be named the i100 or M100, but the latest rumor from BMW insider Scott26 is that it will be called the i8 and there will unfortunately be no M version.