The new F90-generation M5 is the most powerful M car BMW has ever built, packing an upgraded 4.4-liter twin-turbo V8 that churns out an impressive 600 horsepower and 553 lb-ft of torque. But as much as we love BMW's new super sedan, it's about to get even better with the upcoming M5 Competition Package. BMW hasn't officially announced it yet, but leaked details posted on Bimmerpost by a member who has one on order give us a good idea what to expect.

If the leak is legitimate, the M5's twin-turbo 4.4-liter V8 engine is going to be massaged to deliver an additional 25 ponies and 37 lb-ft of torque. That brings the grand total to a respectable 625 hp and 590 lb-ft, making it more powerful than the Mercedes-AMG E63 S by 22 hp. It's a hefty power upgrade for a sedan that's already no slouch. Don't forget too that BMW tends to be conservative with its power figures. With this extra grunt, the BMW M5 equipped with the Competition Package will complete the 0-62 mph a tenth of a second faster than the standard car at 3.3 seconds, which is also 0.1 seconds quicker than its AMG rival.

Top speed wasn't mentioned, but it should be at least 190 mph to be on par with an M5 fitted with the M Driver's Package. As well as gaining more power, the new M5 Competition Package will also add a new sports exhaust with "competition specific tuning" that will add more pops and crackles to the sedan's vicious V8 soundtrack. It's worth mentioning the Sports Exhaust is not the full titanium exhaust, however, which is disappointing. Ceramic brakes also won't be included in the Competition Package according to the forum post. The M5's suspension will also be stiffer and lower, and the car will ride on bespoke alloy wheels.

Other enhancements will include black accents for the badges, side grills, and the lower section of the rear bumper around the diffuser. Competition-branded illuminated door sills, an M carbon fiber engine cover, and blacked-out "Competition" underneath the M5 badge similar to the M2 Competition will also come as part of the package. Motor1 was also able to obtain images of the M5 Competition package by entering the last seven digits of Vin numbers posted on the forum at the Bimmer.Work website. The new M5 Competition will be officially revealed on May 8, with production starting in July. Customer deliveries are slated to begin in December.

No word yet on how much it will cost, but expect the price to be around the same as the previous-generation M5 Competition Package at around $7,300.