Irlinger wouldn't reveal how BMW expects the mix to break down, but it is counting on the new roadster and face-lifted coupe to lift overall i8 sales significantly.
The new i8 will be on sale in January and the two versions will have their world premiere at the Los Angeles Auto Show which runs until December 10. With sleek, concept vehicle looks and a forward-thinking powertrain design, the i8 proved to be a sensation. The electric motor driving the front wheels gets 12bhp more power (now 141bhp) while the 1.5-litre petrol triple driving the rear wheels is unchanged in power (at 228bhp) but is said to sound sportier than before.
Since both models are essentially a mid-cycle facelift, despite the Roadster not having a predecessor, both the exterior and the interior have been updated.
Inside, the cabin gets an updated steering wheel, a multifunction instrument display and an 8.8-inch freestanding touch screen.
To accommodate the new roof, BMW has modified the windshield, providing it with a strengthened frame and beefed up quarter windows.
Another change to the powertrain is the new lithium-ion battery that now boasts a cell capacity of 34Ah (up from 20Ah) and an energy capacity of 11.6kW (up from 7.1kW).
The engine is now boosted to 231hp giving a combined power output to 374hp which gives the i8 performance figures of 0 to 60 in 4.4 seconds for the Coupe and 4.6 seconds for the Roadster.
The i8 Roadster includes a power-retractable cloth panel over the cabin that stows away in 16 seconds, and can be operated at speeds up to 31 miles per hour. (320 Nm) of torque as the existing unit, with drive channeled through a 6-speed automatic gearbox to the rear wheels.
The Roadster wasn't the only i8-related development BMW unveiled in LA; since the i8 Coupe was introduced, electrification technology has evolved, and it benefits from the implements that have gone into the Roadster. The soft-top can be raised or lowered in 15 seconds, and is operable at speeds up to 50km/h. When retracted, the soft-top folds into a compact package and stows away in a perpendicular position, creating around 100 liters of storage space behind the seats. And what Honda has cooked up is a proper supercar priced not a whole lot higher than an i8 Coupe.
The roof, which consists of a large fabric-covered panel and integrated header rails, is claimed to open in just 15 seconds at speeds up to 31 miles per hour (50 km/h), providing the i8 Roadster with full open-air properties.