German Car Zone

Your welcome of course!

M

Great!! Thanks a lot! Love the colour combination…can't wait for the end result…

Here's something interesting I've noticed about our long-term 2009 BMW 750i. Its on-board hard drive is able to recognize a lot more CDs than any other in-car hard drive I've ever used. Here's an example: Tool's Vicarious album.

I've never before been able to impose my Tool fanaticism on my coworkers, because other cars (Infinitis, Mitsubishis) don't pick up the track titles so there's point in ripping the CD to the hard drive. But the BMW 750i knew which CD I'd popped in, so now everyone gets to enjoy Vicarious for the next year.

During the 2,000 miles I just spent with the 7 Series, I only encountered one CD (Faithless/No Roots) whose album information the car couldn't pick up. Now I'm curious to find out if our BMW has some uber version of Gracenote.

Of course, if you're not all old-school and don't have a big collection of CDs as I do, this might not be a big deal to you. That's fine, but with only an aux jack (and no USB port) in our car, using the on-board hard drive to store music is the easier, more ergonomic option.


Erin Riches, Senior Editor @ 6,445 miles


2009 BMW 750i: Better Database Than Other On-Board Hard Drives? | Long-Term Road Tests Blog on Edmunds' Inside Line


M

I must admit, this car is slowly growing on me. But, I still reserve my final judgment until I see the car IRL.

Look at this!


I've just seen another 750i IRL, it's amazing car. Looks a ton better than in photos.

How come you haven't seen it yet, you're in California? Don't you guys get all the fancy cars overthere?

This thread is absolutely great
Karma for Merc edit; looks like karma has to wait, I have to spread first..

Dude, I'm not in the richest of locales, but even so I see mostly S-classes here. The majority of the 7 series I see are awfully modified rapper-mobiles sitting on 22s.

I'm still waiting to see the 7er rolling on the streets, but I might just go to the BMW dealer to check it out. The problem is they're kind of A-holes and won't let me test drive it, so it makes my trip to the dealer pretty worthless.

Oh, that su*ks! But they wouldn't let me drive it either here in my country...

Yup, that's our long-term 2009 BMW 750i on MD Automotive's Dynojet chassis dyno in Westminster, CA.

And why not? After all, its 4.4-liter V8 is not only twin-turbocharged and equpped with direct injection, it's been turned inside out. That's right--the intake manifolds are located where the exhaust manifolds usually live, and the turbos nestle in the vee formed by the two cylinder banks.

Does this unconventional layout actually work? Is Nutella a delicious spreadable chocolately substance? When we finally defeated all of the 750i's numerous electronic protections (including one that throws the transmission into Park if the wheels turn while the door is open), we found out just how angry this flagship luxury liner can be.

Hit the jump for the dyno chart.

BMW rates the 750i at 400 horsepower at 5,500 rpm and 450 pound-feet of torque at 1,800 rpm.

We started our run after 2,000 rpm and found that peak torque arrived a bit later than BMW's claim. Nevertheless, it's safe to say that the engine is, shall we say, robust. What's more, while on the dyno the BMW breezed right up to the rev limiter with little more than a whoosh, as if it wasn't even working hard.





As you can see, there's a big shelf of torque available all the way through the midrange. Torque rolls off steadily past 4,600 rpm followed by a more precipitous drop at 6,500 rpm. Without running all the numbers, it's likely that the BMW turns in its best acceleration times by shifting well short of its 6,700-rpm rev limit.

It's worth noting that turbocharged cars generally produce "high" chassis dyno results relative to normally aspirated cars rated at similar power. Part of the explanation is due to the turbo car's intercooler--automakers tend to heat soak the intercooler to somewhat higher temperatures during their certification process than what you get on a chassis dyno. The result is that the numbers claimed by the automaker end up appearing a bit conservative. And that goes for pretty much any modern turbocharged gasoline engine.

Conservatively rated or no, this sucker's quick. We clocked the 750i at 5.2 seconds to 60 and 13.5 @ 103.7 through the quarter mile. Not bad for a 4,600-lb sedan.

Jason Kavanagh, Engineering Editor



2009 BMW 750i: The Dyno Reveals The Beast Within | Long-Term Road Tests Blog on Edmunds' Inside Line


Hellish impressive.


M

Thanks for the update Merc