BMW is reportedly developing a Tesla Model S competitor for 2018. It could be called either the i5 or i7.

BMW is reportedly developing a Tesla Model S competitor for 2018.

According to Automobile Magazine, the model will be a plug-in hybrid that is based on the long-wheelbase 5-Series that is available in China.

Slated to adopt either the i5 or i7 moniker, the model will reportedly feature a front-mounted range-extending petrol engine and two electric motors. This setup will enable the car to be front-wheel drive, rear-wheel drive and all-wheel drive. Specifications remain a mystery but it's rumored that the car will have an electric-only range of 80 miles (128 km).

Little else is known about the model but it will reportedly be previewed by a concept in 2017 and adopt styling cues from the 6-Series Gran Coupe and the next-generation 7-Series.

The production model will reportedly cost less than $100,000 (€80,400 / £64,080) and BMW is expected to build 30,000 units annually.

Be part of something big