It's no secret the next-generation BMW M2 is just around the corner. We also the first-ever XM, previously rumored to be called the X8, is on the way too. Our spy photographers have caught both in prototype form more than once and official reveals aren't too far out.

Today, Bimmerpost has gotten its hands on some insider information revealing critical details about both vehicles, such as output and production lifespan. First up, the next M2 coupe. It'll come powered by the S58 3.0-liter twin-turbo inline-six that'll have a total of 455 horsepower. For reference, the limited-edition M2 CS has 444 hp. Bear in mind there'll very likely be another M2 CS down the line and could easily hit the 500 hp mark. The forum post further states the next M2 will be rear-wheel-drive, which isn't anything new. However, it makes no mention of an optional xDrive all-wheel drive system.

Purists will be further satisfied knowing they'll be able to get a six-speed manual. A carbon fiber roof will be optional and wheel sizes measure 19-inches up front and 20-inches at the rear. Assembly will take place at BMW's factory in Mexico and the first four months of production will coincide with the 50th anniversary of the famed M division. Expect the first batch of G87 M2s to be more collectible than future examples. Take note, collectors.

Production will begin in December 2022 and will continue until July 2029. Moving on to the XM, internally called "Project Rockstar," it too will begin rolling off the assembly line just over a year from now with a November 2027 end date.

The lineup will consist of the 45e hybrid and two gas engine options. But it's the former that should really get the most attention because it'll utilize the same S58 straight-six twin-turbo from the M3 and M4 (and the new M2) connected to dual electric motors powered by batteries. Total output is said to be around 650 hp.

Several unique M features are also part of the grand package, such as dark blue sport brakes (red and black are optional), sport seats, seat belts, and plenty of carbon fiber trim throughout the cabin. Standard wheel sizes measure at 21-inches and up to 23-inchers will be offered. Come mid-2023, the next generation driving assist system will become standard. Official debut dates remain unknown.