The G-spot

[SJ_GTI]

The best I've ever gotten is ~26 mpg on an all-freeway drive but then again a good portion of it was at ~75 mph. My lifetime (or, over the last ~70,000 miles shows ~19.5 mpg)

My friends with other poser class cars report about the same mpg (19-20 mpg ave), and most of them are smaller, less powerful motors...

FWIW, I get 19-21 MPG on my S4. But I do very little highway driving any more. My commute is about ~11 miles and includes ~15 (potential) stops along the way.

[MX793]

26 all highway...  I get over 30 mpg cruising at 70-75 in the Mustang.

[Eye of the Tiger]

26 all highway...  I get over 30 mpg cruising at 70-75 in the Mustang.

All the cool cars get 30@70. Corvettes get 30@70. Accent gets 30@70. Etc.

[giant_mtb]

Tacoma averages 18 mpg.  Your G cars hardly get better mileage than trucks.  The fuck is going on.

[BimmerM3]

S2000 gets 20-21 around town. I don't think I've ever had a tank under 20.

Exploder gets like 13 around town.

[12,000 RPM]

The Germans at the tops of the class - S4, 335i, C450 - have a compelling proposition but an IS250, C300 or A4? Jesus, how desperate does a person have to be to pony up for that.

If one doesn't care about or need max HP they aren't that bad. Much nicer, better balanced driving experience than something like a CamCord V6. My brother has an Altima V6 I borrowed for a road trip... I would gladly have traded some power for brakes and chassis balance. It rode like a Buick.

Speaking of turbos though, 335i does like 2-3 MPG better than the VQ cars, on average.

[AutobahnSHO]

!!!    I would expect a little better from more modern engine.

Legacy gets 23mpg all year long, A/C on or off, mixed driving. Get up to 27mpg highway. (low gearing doesn't help at 75mph)
My old Miata got 28+mpg with non-stop serious lead-foot.  In my old 2004 Sienna I got 19-25mpg, (ex got 16-23)
Even current Odyssey with something wrong with torque converter and/or transmission gets 19mpg mixed driving.

[BimmerM3]

!!!    I would expect a little better from more modern engine.

Legacy gets 23mpg all year long, A/C on or off, mixed driving. Get up to 27mpg highway. (low gearing doesn't help at 75mph)
My old Miata got 28+mpg with non-stop serious lead-foot.  In my old 2004 Sienna I got 19-25mpg, (ex got 16-23)
Even current Odyssey with something wrong with torque converter and/or transmission gets 19mpg mixed driving.

Legacy is rated at 137 hp.
Miata is rated at 116 hp.
Sienna is rated at 230 hp.
Odyssey is rated at 240 hp.

The G37s these guys are talking about make ~330 hp. Power takes gas.

[GoCougs]

If one doesn't care about or need max HP they aren't that bad. Much nicer, better balanced driving experience than something like a CamCord V6. My brother has an Altima V6 I borrowed for a road trip... I would gladly have traded some power for brakes and chassis balance. It rode like a Buick.

Speaking of turbos though, 335i does like 2-3 MPG better than the VQ cars, on average.

Yes, they're terrible cars, and the 335i is smaller and lighter than a G.

[GoCougs]

Tacoma averages 18 mpg.  Your G cars hardly get better mileage than trucks.  The fuck is going on.

~100 more hp, AWD (at least in my case), emphasis on styling rather than low Cd, and the AWD G is pretty heavy at ~3,850 lbs. Lifetime mixed driving is 20.0 mpg. If I drive more/predominantly highway I'll get 24-26 mpg, which is not really viable for a V6 Tacoma.

[12,000 RPM]

Yes, they're terrible cars, and the 335i is smaller and lighter than a G.

Interior dimensions are essentially the same, exterior of the G is bigger (but the G has a smaller trunk ). Curb weights of matched powertrains are within +/- 1%. EPA and more importantly Fuelly estimates heavily favor the 3 

http://www.kbb.com/compare-cars/specs/2015-bmw-3-series-402685-vs-2015-infiniti-q40-402694-vs-2007-bmw-3-series-83466-vs-2010-infiniti-g-264101/

VQ gets the job done but makes you pay for it. Having to rev out to almost 8K for full power will do that

[Laconian]

Yeah, those BMW turbos are great for low end torque and destroying themselves out of warranty. The VQ TCO outweighs any marginal differences (and they are marginal) in fuel economy IMO. You also know how turbo engines lie on EPA stats, right? Breathing heavily on the throttle is enough to activate the gas guzzler switch.

[AutobahnSHO]

Legacy is rated at 137 hp.
Miata is rated at 116 hp.
Sienna is rated at 230 hp.
Odyssey is rated at 240 hp.

The G37s these guys are talking about make ~330 hp. Power takes gas.

And they SOOOO get to use that power   

[GoCougs]

Interior dimensions are essentially the same, exterior of the G is bigger (but the G has a smaller trunk ). Curb weights of matched powertrains are within +/- 1%. EPA and more importantly Fuelly estimates heavily favor the 3 

http://www.kbb.com/compare-cars/specs/2015-bmw-3-series-402685-vs-2015-infiniti-q40-402694-vs-2007-bmw-3-series-83466-vs-2010-infiniti-g-264101/

VQ gets the job done but makes you pay for it. Having to rev out to almost 8K for full power will do that

No, no and no. The G37 is materially heavier, bigger and more powerful and so it gets a bit less mpg. There are no surprises here.

[12,000 RPM]

No, no and no. The G37 is materially heavier, bigger and more powerful and so it gets a bit less mpg. There are no surprises here.

1% increase in weight = 10-15% drop in MPG?

Yeah, those BMW turbos are great for low end torque and destroying themselves out of warranty. The VQ TCO outweighs any marginal differences (and they are marginal) in fuel economy IMO. You also know how turbo engines lie on EPA stats, right? Breathing heavily on the throttle is enough to activate the gas guzzler switch.

That's why I cited Fuelly....

http://www.fuelly.com/car/bmw/335i- 22-25 MPG
http://www.fuelly.com/car/infiniti/g37- 19-21 MPG

TCO/reliability are legit concerns but we were talking gas mileage. TT Japanese V6s will get better gas mileage

[GoCougs]

The G37 power train has remained unchanged since its debut in MY2009 so the appropriate Fuelly comparison is the E90 335i (thru 2011). Per your links, matching year for year:

Year: 335i vs. G37

2009: 21.6 vs. 18.3
2010: 21.9 vs. 20.4
2011: 21.6 vs. 20.6
Ave: 21.8 vs. 20.5

We can objectively toss the 2009 stat for the G37 as it is by definition nonsense (same power train for 2009 - 2011). So, ~5% more mpg for a car that is smaller, lighter and less powerful? Uh, huh. Also note that Fuelly does not discern between AWD and RWD and as we know there are significantly more G37x out there than 335i X-Drive which if added to the utterly non statistical nature of Fuelly puts the ~5% difference in the noise.

Congrats, you have objectively proven that the two vehicles get about the same mpg, despite the G37 being bigger, heavier and more powerful.

[AutobahnSHO]

Congrats, you have objectively proven that the two vehicles get about the same mpg, despite the G37 being bigger, heavier and more powerful.

No correction for driver....

[MrH]

My Korean couch gets better gas mileage than some of you guys.  And it make an additional 100 hp.

[GoCougs]

Both EPA (15/23/18) and Fuelly numbers (18.2 mpg) for the Genesis 5.0 are pretty low though...

[SJ_GTI]

Filled up on the way home tonight. 299.5 miles on 14.495 gallons (20.66 mpg).

Unfortunately it will be dropping soon when they switch to the winter blend.

[Laconian]

You don't have a G?!

[Cookie Monster]

My dad's computer readout says he gets 16 mpg.

He drives it like Jeremy Clarkson though. POWWAAARRRRRR

[12,000 RPM]

The G37 power train has remained unchanged since its debut in MY2009 so the appropriate Fuelly comparison is the E90 335i (thru 2011). Per your links, matching year for year:

Year: 335i vs. G37

2009: 21.6 vs. 18.3
2010: 21.9 vs. 20.4
2011: 21.6 vs. 20.6
Ave: 21.8 vs. 20.5

We can objectively toss the 2009 stat for the G37 as it is by definition nonsense (same power train for 2009 - 2011). So, ~5% more mpg for a car that is smaller, lighter and less powerful? Uh, huh. Also note that Fuelly does not discern between AWD and RWD and as we know there are significantly more G37x out there than 335i X-Drive which if added to the utterly non statistical nature of Fuelly puts the ~5% difference in the noise.

Congrats, you have objectively proven that the two vehicles get about the same mpg, despite the G37 being bigger, heavier and more powerful.

Lol. If the G beat the 3 in 09 you'd be scrambling to count it. Also, the G had one more gear than the E90 3, so we should also be able to count the F30 3, and all years of the G. Fuelly's model long medians for the G and 3 are 21 and 23 respectively. 10%.... hardly insignificant, considering the ~1% weight difference between them. And all this talk of power is irrelevant..... performance is what counts, and the 3 has the G there, handily. More performance, more fuel economy.... that's the power of turbocharging 

[GoCougs]

Lol. If the G beat the 3 in 09 you'd be scrambling to count it. Also, the G had one more gear than the E90 3, so we should also be able to count the F30 3, and all years of the G. Fuelly's model long medians for the G and 3 are 21 and 23 respectively. 10%.... hardly insignificant, considering the ~1% weight difference between them. And all this talk of power is irrelevant..... performance is what counts, and the 3 has the G there, handily. More performance, more fuel economy.... that's the power of turbocharging 

C'mon, man, just take yer lumps...

[SJ_GTI]

You don't have a G?!

No, but same class car with similar power and AWD. Last page or two has been comparing mileage to other cars.

[Raza]

My step sister just got one... but only because she works for MB USA and has access to some crazy cheap lease deal. What's even better is that her boyfriend/my best friend has a 335i that was heavily subsidized by his parents. Poser class cars for actual posers.

My neighbor has one. She had a CLK before, but popped out a kid, so two doors was no longer an option. I mean, I think it looks great, and is the right size too. I don't know if it comes with a stick or not, but if did, I'd consider one, if it weren't a Mercedes. GTI gives it stiff competition if you're not too image conscious.

[Raza]

Yes, they're terrible cars, and the 335i is smaller and lighter than a G.

Lol.

[afty]

I'll be the first to admit my G gets terrible mileage.  Even my wife's Sorento (with Kia's 3.5l V6) does a little better.  But I don't drive enough for it to be a big deal.

[Morris Minor]

I think the days of big V6s are numbered. We're all gonna be squeezed into 2.0L 4-bangers with turbo/induction gizmos running at hundreds of PSIs and blast-furnace operating temperatures.

We should treasure our VQs.

(Then they're gonna come for our guns.)

[12,000 RPM]

I think the days of big V6s are numbered. We're all gonna be squeezed into 2.0L 4-bangers with turbo/induction gizmos running at hundreds of PSIs and blast-furnace operating temperatures.

We should treasure our VQs.

(Then they're gonna come for our guns.)

A legitimate concern