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BMW celebrates 30 years of M5 with 600-hp super sedan

It's been 30 years since BMW rolled out the first M5, and while displacement and cylinder count may have fluctuated over those past three decades, output has only increased. The first-generation E28 M5 packed a 3.5-liter inline-six with 252 horsepower and 243 lb-ft of torque. The second-gen E34 model that followed added an extra 100 cc (and later 200 more) to produce 310 hp and 266 lb-ft. The E39 followed with a 4.9-liter V8 churning out 394 hp and 369 lb-ft, replaced by the award-winning 5.0-liter V10 in the E60 with its 500 hp and 380 lb-ft before BMW rolled out the latest model with a 4.4-liter V8, its twin turbos making up for the two dropped cylinders and 600 cc of displacement to produce 560 hp and 502 lb-ft of torque. But even that's being left in the dust by the new special edition you see here.
The 30th Anniversary Edition BMW M5 packs that same 4.4-liter twin-turbo V8, but cranks the output up to a nice, round 600 horsepower and a solid 516 lb-ft of torque to go with it. That makes it more powerful, not only than any M5 that's come before it, but also any of its rivals. The Jaguar XFR-S and Audi RS6 Avant (the latter only available as a wagon and not in North America) both lag behind this ultimate of Ultimate Driving Machines; only the Mercedes-Benz E63 AMG trumps it on torque (but not on power), with 531 lb-ft in stock form and 590 in the S-Model.
As a result, the 0-60 time drops from a quoted 4.2 seconds in the stock M5 to a scant 3.7 in the 30th Anniversary edition (just one tick behind that twistier E63 S). The special M5 also comes with the Competition Package as standard, as well as a dedicated control module for the Active M Differential, a special Frozen Dark Silver matte finish, 20-inch alloys and black chrome badges. Special badges abound inside as well, where you'll also find black leather and Alcantara upholstery and aluminum trim. There'll even be a dedicated one-day course offered to owners at The Thermal Club in Palm Springs, CA, to further sweeten the deal.

Daily Driver: 2015 BMW X6 M

Daily Driver videos are micro-reviews of vehicles in the Autoblog press fleet, featuring impressions from the staffers that drive them every day. Today's Daily Driver features the 2015 BMW X6 M, reviewed by Greg Migliore. You can watch the video above or read a transcript below. Watch more Autoblog videos at /videos. VIDEO TRANSCRIPT: [00:00:00] Hey, everybody. It's Greg Migliore, and today I am driving the 2015 BMW X6 M. This is the crossover coupe that is sort of a halo SUV for BMW. It's got its naysayers but I like it. I think it's a number of things enthusiasts like. It's fast, it's curvy, it looks good, it's fun to drive, and this one that I'm [00:00:30] testing out is absolutely loaded. It comes in at more than $115,000. Now that might seem like a lot for an X6, even in M trim, but you're getting a lot of stuff here. This has got a twin-turbo V8, pumps out 567 horsepower. It's mated to an eight-speed automatic transmission, which I think is a good one, and it runs with all-wheel drive. There's a number of M treatments like the wheels, some of the aerodynamic treatments up front. [00:01:00] It looks sporty and it also has a good tough crossover feel, but it still has almost a car feel as well because the X6 was designed to have a bit of a coupe dynamic. Now inside, is really a beautiful surroundings. We've got lots of trim. It looks like carbon fiber. We've got different color stitching. There's black trim, there's orange trim, there is some of the M colors of light blue and red trim on the steering wheel. It definitely looks like a [00:01:30] loaded BMW, but also an M BMW series. You lay on the throttle you can get away from stoplights quickly, no trouble. Sounds good. There's a nice exhaust note. It got moving. It's a quick car. It can get to 60 miles an hour in about four seconds, which when you consider this SUV is above 5,200 pounds, that's pretty quick. Some people question the point of an X6 in general, [00:02:00] and especially an X6 M. You're taking an SUV with less capability than an X5 and some other SUVs in this segment and then cutting it down and making a design statement. I say exactly. That's exactly what you're doing. I like a vehicle that looks like this that has those coupe-like stylings in the back. It's a little more of a cutting edge, curvy design. I think all of that's great. Then, if you're going to do different M versions of cars, why not do an X6 M?

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.