BMW released a teaser of the upcoming i8 Roadster - the ultimate progressive sports car is now ready to spread its wings.

The third member of the BMW i family (beside the i3 and the hardtop i8) will of course will be based on the standard i8.

Sales are to begin in 2018, so we hope for an unveiling of the i8 Roadster at one of the upcoming motor shows later this Fall.

"In 2018 the BMW i8 Roadster will unlock the door to a whole new dimension in pioneering open-top driving pleasure – virtually silent and with zero local emissions."

As of today, BMW has yet to reveal any details on the performance of the i8 Roadster. The only numbers put forth so far are preliminary energy consumption figures...which basically to whoever is driving this car aren't likely to be the primary specs of interest:

"BMW i8 Roadster plug-in hybrid BMW eDrive: energy consumption (combined): 15,4 kWh/100 km. Fuel consumption (combined): 2,0 l/100 km, CO2 emissions (combined): 45 g/km."