• Dec 16th 2008 at 12:28PM
  • 65
2008 BMW M5 – Click above for high-res image gallery

BMW's M5 is understated enough to fly under the radar of the general public, but those in the know, familiar with its capabilities and the legacy it carries, grow silent with reverence if you pull up to them at the gas pump. Who can resist a vehicle that can stop conversations mid-sentence, and accelerates strongly enough to extinguish candles on the next block? We certainly couldn't, and thus began our week with the mighty M5.

Photos copyright ©2008 Dan Roth / Weblogs, Inc.

Mighty cuts both ways. The engine is mighty impressive, but the transmission leaves a lasting impression, and it's not a good one. With 507 horsepower snarling forth from an alloy V10 the M5 pins you into the seat, which is fine, because you'll be comfortably smiling as your skull flattens against the headrest. Wipe that grin off your face, quickly, or else you'll be bouncing the tachometer's needle off its redline somewhere north of 8,000 RPM. Leaving the transmission in auto will avoid the rev limiter, but that's not the proper way to drive an SMG-equipped BMW.

Normal automatic transmissions shift quickly; they shift smoothly, or crisply. Manual transmissions shift as well as the driver's skill allows. Some automated manual gearboxes crack off gear changes faster than a Ramset sinks nails into concrete. But SMG may be just as quick as DSG, e-gear, or Cambio Corsa, its action is wholly unsatisfying. Twiddling a rocker on the center console adjusts the shift's ferocity, but equipped with the sequential manual, the $92,000 M5 is less satisfying than a $25,000 GTI with DSG. Acceleration runs start with promise, but all of a sudden it's anchors aweigh! before you're slammed back into the seat again. An ancient TH400 would be a welcome improvement, but manual mode is the only way to extract some pleasure from this electrohydraulic transmission.

The V10 is sensational in both specification and performance. Upon startup, the promise of performance crackles underhood, with pistons effortlessly sliding inside a linerless block. Electric oil pumps make the lubrication system impervious to lateral g's, ten individual throttles ensure snappy response, a bedplate keeps the forged crankshaft in place, bi-Vanos tweaks the camshafts, and a 12:1 compression ratio is integral to extracting 100 horsepower per liter. Once underway and churning along at speed, the exhaust pulses like a header-equipped hotrod, which the M5 is, straight from the factory.

But there's more to the M5 than an engine. Being based on a middleweight Euro family sedan makes the M5 well suited to carting offspring around... rapidly. The accouterments of everyday life are present. Details like built-in sunshades for rear seat occupants balance out the M5's exclusive frills like the vents on the front quarter panels that look perfect on the lines of the 5 series. The front seats feature automated bolsters that tense up when the M5 is flung enthusiastically and shock the Hell out of you the first time they activate. With all the subtlety of an elbow to the ribcage, we found the seats distracting and unnecessary, and thankfully, they come with an "off" switch. Once the overzealous chairs have been disabled, typical Bayerische comfort is served up.

Our M5 tester was outfitted with white leather, a choice that would require frequent attention to stay clean and beautiful. Extra spiffing is worth it for the airiness the light-hued accents and touches of brushed metal lend to the cabin. The look inside is clean and stylish in an almost Bauhaus fashion, even the center stack doesn't suffer from buttonphilia. iDrive helps in that regard, though it hinders vehicular ease of use for drivers that don't like GUIs in their cars, but it's been revised to the point where it's easy enough to use without hitting the manual with a highlighter. M-badges grace the gauges, shifter (which feels just as flimsy here as in the X6) and steering wheel, the latter benefitting from blue and red stitching surrounding its chunky circumference.

Driving the M5 can be thrilling. Reflexes are sharp, though the firm ride never gets harsh. That astonishing aplomb is one reason BMW's reputation for balance precedes it, and the things the M5 can do without breaking a sweat or over-agitating its occupants truly amaze. Electronic Damper Control manipulate the shock absorbers obsessively and the rear differential locks so that all the thrust can meet asphalt; press the angry pedal too far with stability control disengaged and the M5 will render a clear demonstration of snap oversteer. Keep your wits about you, and the car is mild mannered -- it's useful as a family car, albeit one with a supercar engine underhood. It is, after all, a 5 series underneath all the bombast.

If it seems like we're fixated on the M5's drivetrain, we are. The rest of the car is mostly superb, but it's a supporting character in a tale where the V10 is in the spotlight. The chassis tuning is well oiled and masterful, though the ever-creeping weight of cars in this class has dulled the edge. Steering is deft, though ten minutes in an E36 will have you wondering what the M5's doing at the contact patch. iDrive works as well as it's probably ever going to and it will remain a polarizer, but that shouldn't stand in the way of purchasing an M5 if you want a sedan capable of awesome performance, for an equally rarefied price. Our gripes about the SMG's herky-jerky behavior remain the sole issue, but a manual version is available, though it comes with a performance penalty. SMG or six-speed stick, the M5 is still very quick, and the traditional 'box may be the savior from the seven-speed automated suckfest that is SMG.

We can't help thinking that perhaps a pleasantly optioned V8 5 series would be more satisfying than its uber-sedan counterpart. It's no E39 M5, which will probably mean good things when this generation starts hitting the pre-owned market, as long as you can learn to love the robot in the transmission.

Autoblog accepts vehicle loans from auto manufacturers with a tank of gas and sometimes insurance for the purpose of evaluation and editorial content. Like most of the auto news industry, we also sometimes accept travel, lodging and event access for vehicle drive and news coverage opportunities. Our opinions and criticism remain our own – we do not accept sponsored editorial.

I'm reporting this comment as:

Reported comments and users are reviewed by Autoblog staff 24 hours a day, seven days a week to determine whether they violate Community Guideline. Accounts are penalized for Community Guidelines violations and serious or repeated violations can lead to account termination.

    • 1 Second Ago
      • 6 Years Ago
      The problem with a CTS-V is it's ugly (or so I think) and it's a Cadillac.
      • 6 Years Ago
      My cousin recently purchased one. One SWEET car. Just ordered an Audi RS6 Avant and having it imported on a recent trip to Germany. Can't wait to get it.
      • 6 Years Ago
      I test drove the M5, 550i, Jaguar XF, Lexus, Infinity, Audi, and the Mercedes. Maybe its my age but the BMW's were just too stiff when the road turned bumpy or broken up and SMG sucks. It was also too expensive, especially when you consider the E63 is $15K cheaper. The Lexus and Infinity were underpowered and had no style. The Audi was very nice but also lacked any style. The Audi was also too stiff on normal roads. The Jaguar had the best all around performance, looks, ride, and power but its reliability and resale value made the purchase of the E class from Mercedes my choice. Not the best handling but more than adequate for the occassional romp, plenty of power, very smooth transmission, classic good looks, and all around good performer with plenty of amenities to satisfy even the most jaded car owner. Maybe next time BMW. Happy Holidays!!!!!
      • 6 Years Ago
      the 5 series is a beautiful car, if I had the money it would be the 5 series. when I see it in the road the proportions are just there.
      • 6 Years Ago
      the M5 is the original sports sedan. It doesn't only raise the bar each time, it set the bar.

      And it just sounds beautiful.
      • 6 Years Ago
      What's a G8?

      IMO that's a crappy review about a friggin' awesome car. All this talk about the metal accents and leather seats is BS. Check out Clarkson's review of the M5 on YouTube. It's pure porn.
      • 6 Years Ago
      Hopefully there's enough of these being ordered with a proper 6 speed so that they aren't hard to find in a few years when a normal person can afford a used one.
      • 6 Years Ago
      I'm sticking to American. G8 GXP or CTS-V, please. I used to like the M5, but it's too understated and looks timid. The G8 and CTS stand out.
        • 6 Years Ago
        Yeah the same people who will pay 2X the price for the BMW badge.
        • 6 Years Ago
        I believe being "timid" is the idea behind the design...simply because there is a whole different level of crowd who will purchase a M5 vs a Pontiac G8.
      • 6 Years Ago
      When doing a photoshoot for a car, please remove your personal belongings. Please dont leave coffee cups in the cup holder, no matter how shiny they are. It's just not professional.
      • 6 Years Ago
      There are several '06's in Autotrader.com for low $40's with
      • 6 Years Ago
      Why not? it will keep up with the car, costs 1/3rd the price and my personal opinion looks better, Not to take away from the M5 just my preference, I can get a G8 and a stock vette for M5 prices
        • 6 Years Ago
        Yes, considering price/performance you have a real bargain in the G8, especially the GXP variant. But of course, the G8 GXP is drool worthy only in the same way the Cobalt SS, whereas the M5 simply leaves you speechless per the reviewer's phrasing. "That much power in that package?!" or "That power and package!"

        • 6 Years Ago
        You can get 3 supercar beating ZR1's for the price of a 599 GTB....

        but I'd still take the Ferrari!
      • 6 Years Ago
      Bitchin'....straight bitchin'...
        • 6 Years Ago
        the manual trans m5s are fantastic, nearly perfect super-car disguised as a luxury sedan

        i bet the resale value of the 3 pedal cars beats the SMG
        • 6 Years Ago
        And at the end of te 5 yrs, it'll be cheaper to sell it as scrap metal than maintaining and fixing it! Honestly though, I cringe at the thought of maintaining a 10 - 15 year old E60 M5 in the future.

        My friend has an E34 530i, with the V8. Maintnance is an absolute nightmare. In fact BMW themselves calls for 28 hours of labor just to replace the heads. Any major work on that car, from changing cams to the computer, can quickly become a knuckle scraping nightmare.

        Now try a vehicle that's many times more complex. The guy owning this car 10 years down the road won't be able to afford injector and computer replacements.
    • Load More Comments
    Share This Photo X