The i8 Roadster is available with an option travel package that increases interior storage by 92 liters. The Roadster also features a power rear window just behind the passengers that can be operated independently of the power roof. BMW says the i8's soft top can be retracted in just 15 seconds at speeds up to 50kph.
Battery capacity has increased from 7.1kWh to 11.6 kWh for the new model year. As a result, the i8 Coupe can now travel up to 34 miles on battery power alone, up from 22 miles. The i8 Roadster, which weighs 132 pounds more than the i8 Coupe, can travel up to 33 miles on electric power.
Both i8 models will hit the market in May 2018. Pricing for the new i8 Coupe and Roadster will be announced at a later date.