With crossovers ranging from the X1 to the X7, you'd think that BMW has enough models in its lineup. But you'd be wrong. BMW is currently working on introducing a slew of new models, many of which will be all-electric. While the company might want to keep all of these model models under wraps, a reliable BMW insider just lifted the proverbial lid in a forum on Bimmerpost.

The insider gives new details, including powertrains and production dates, for three upcoming BMW models. These include a more hardcore version of the 2021 BMW M5, an electric version of the 2021 BMW X1, and an Alpina variant of the 2021 BMW 8 Series Gran Coupe.

Let's start with the M5 CS, which is set to arrive as a 2022 model. We spotted the M5 CS testing way back in 2018, but we finally know that it will enter production in March 2021 and finish in February 2022. The insider claims the CS model will be less extreme than some people had hoped. The 4.4-liter twin-turbo engine will be tuned to 625 horsepower, and BMW will add carbon-fiber bucket seats, more carbon-fiber in the body, deleted the middle passenger seat in the back, and include special wheels.

As for the electric X1, this will be sold as the iX1, one of nine new electric vehicles that BMW is planning to launch by 2025. Two range and motor options will be available, with the single-motor version getting a '20' badge and the dual motor using a '30' badge.

Finally, the insider gives details on when we can expect to see the long-awaited Alpina B8, based on the 8 Series Gran Coupe. This model will enter production in March 2021, likely using the same version of BMW's 4.4-liter twin-turbo V8 used in the XB7, producing 612 hp and 590 lb-ft of torque. We expect the B8 to be the prettiest BMW model and sold in extremely low numbers.