This is the most inefficient carmaker of 2021, according to the EPA

Colin
By Colin Wood
Jul 26, 2021 | Fuel Economy, EPA

Many conversations concerning the automotive world nowadays often focus on which cars and trucks are the most fuel efficient.

But which ones are the most inefficient?

Thankfully, the EPA keeps track of that sort statistic, which they have used to compile a list for 2021: “Least Efficient Cars by EPA Size Class.”

So, which car maker is the worst offender? Drum roll please:


Rolls-Royce, with 10 models out of a total of 16 spots on the list.

Other manufactures include Bentley, Lamborghini, Bugatti and Mercedes-Benz–though with only one or two models making the list.

Also an interesting trend? The fact that the EPA classifies the Rolls Royce Dawn as a compact, and the Bentley Continental GT as subcompact.

At any rate, you can check out the list for yourself here.

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Appleseed
Appleseed MegaDork
7/26/21 1:19 p.m.

Anyone want to start guessing without reading the article first?

My guess? Chrysler/Fiat-whatever the hell its called this week.

RX Reven'
RX Reven' UltraDork
7/26/21 1:31 p.m.

I'll guess Bentley / Rolls Royce.

Ian F (Forum Supporter)
Ian F (Forum Supporter) MegaDork
7/26/21 1:39 p.m.
RX Reven' said:

I'll guess Bentley / Rolls Royce.

To the buyers spending that sort of money on a car, gas-guzzler taxes and fuel costs aren't even pocket change.

tremm
tremm Reader
7/26/21 5:30 p.m.

In reply to Appleseed :

My thought was Nissan, just cause they seem to be in the E36 M3 -er

AngryCorvair (Forum Supporter)
AngryCorvair (Forum Supporter) GRM+ Memberand MegaDork
7/26/21 5:35 p.m.

"Most inefficient carmaker" is not the same as "maker of most inefficient cars"

APEowner
APEowner GRM+ Memberand SuperDork
7/26/21 5:48 p.m.
AngryCorvair (Forum Supporter) said:

"Most inefficient carmaker" is not the same as "maker of most inefficient cars"

Very true, although in this case they may be both.

codrus (Forum Supporter)
codrus (Forum Supporter) GRM+ Memberand PowerDork
7/26/21 7:29 p.m.
AngryCorvair (Forum Supporter) said:

"Most inefficient carmaker" is not the same as "maker of most inefficient cars"

Yup.  Carmaker efficiency is probably best measured by profit margin %.

Pete. (l33t FS)
Pete. (l33t FS) MegaDork
7/26/21 7:38 p.m.

In reply to codrus (Forum Supporter) :

Man hours per vehicle built?

GCrites80s
GCrites80s HalfDork
7/26/21 8:03 p.m.

I didn't know there were 16 different models of Rolls-Royce. Of course, No Rolls-Royce Is Identical

Countingcrowbars
Countingcrowbars UltraDork
7/26/21 8:21 p.m.

The fact that the EPA classifies any Bentley as a compact car is PROOF they don't know wtf they are doing. And, therefore, this report loses all credibility. 

adam525i
adam525i GRM+ Memberand Dork
7/26/21 8:41 p.m.

So, is compact, sub-compact and mini-compact based on interior volume? What metric is used to classify the cars?

Edit- found it in the FAQ

The EPA size class for cars is based on interior passenger and cargo volumes as described below. The size class for trucks is defined by the gross vehicle weight rating (GVWR), which is the weight of the vehicle and its carrying capacity. Fuel economy regulations do not apply to heavy-duty vehicles, so they are not tested. See Which Vehicles Are Tested for more information on these vehicles.

Passenger & Cargo Volume (Cu. Ft.)

Two-Seaters Any (cars designed to seat only two adults)

Sedans  Mini-compact < 85,  Sub-compact 85 to 99,  Compact 100 to 109,  Mid-Size 110 to 119,  Large 120 or more

Station Wagons  Small < 130,  Mid-Size 130 to 159,  Large160 or more

codrus (Forum Supporter)
codrus (Forum Supporter) GRM+ Memberand PowerDork
7/26/21 8:43 p.m.
Pete. (l33t FS) said:

In reply to codrus (Forum Supporter) :

Man hours per vehicle built?

I mean, you can define efficiency any way you like.  Most cups of coffee drunk per hour of union labor if you want. :)

But since "automakers" are generally corporations, I think the most "natural" measure of efficiency is how well they use capital to create new wealth.

RichardSIA
RichardSIA Dork
7/26/21 9:25 p.m.
AngryCorvair (Forum Supporter) said:

"Most inefficient carmaker" is not the same as "maker of most inefficient cars"

if you're gonna be a bear... be a grizzly bear! -jhaas

Exactly right, I was certain it would be Tesla based on the way the headline is worded.

thashane
thashane GRM+ Memberand Reader
7/26/21 9:28 p.m.

I would've never guessed Rolls, mostly because I don't even consider them cars, given I'll never own one, nor have I ever heard anything that would make me desire to own one

RichardSIA
RichardSIA Dork
7/26/21 9:59 p.m.

Rolls ceased being "Rolls-Royce" when they stopped taking in raw material at one end of the factory and sending cars out the other.

Now they are on a "Worst" list, how the proud name has fallen.
Although, this list is more political than factual.
Title still leads me to expect something about how few defect free cars are produced per day by the named company.

mtn
mtn MegaDork
7/26/21 10:34 p.m.

Never heard of This. What cars do they make? Some sort of niche tractor pulling company?

wearymicrobe
wearymicrobe PowerDork
7/26/21 11:14 p.m.

Lamborghini has to be up there or at least number one if I had to take a guess. The Urus the most sedate of their cars gets 12mpg in the real world.

STM317
STM317 UberDork
7/27/21 6:22 a.m.

It makes zero sense to me that Rolls has no fully electric option by now. Their whole thing is quiet, effortless, smooth travel in enormous vehicles. What does that better than silent, torquey EVs?

alfadriver
alfadriver GRM+ Memberand MegaDork
7/27/21 6:29 a.m.
STM317 said:

It makes zero sense to me that Rolls has no fully electric option by now. Their whole thing is quiet, effortless, smooth travel in enormous vehicles. What does that better than silent, torquey EVs?

Probably will happen as soon as BMW makes a big enough system.  As far as I can tell, Tesla is the only one with an appropriate powertrain for a Rolls, and I don't see BMW buying from them.

alfadriver
alfadriver GRM+ Memberand MegaDork
7/27/21 6:33 a.m.
adam525i said:

So, is compact, sub-compact and mini-compact based on interior volume? What metric is used to classify the cars?

Edit- found it in the FAQ

The EPA size class for cars is based on interior passenger and cargo volumes as described below. The size class for trucks is defined by the gross vehicle weight rating (GVWR), which is the weight of the vehicle and its carrying capacity. Fuel economy regulations do not apply to heavy-duty vehicles, so they are not tested. See Which Vehicles Are Tested for more information on these vehicles.

Passenger & Cargo Volume (Cu. Ft.)

Two-Seaters Any (cars designed to seat only two adults)

Sedans  Mini-compact < 85,  Sub-compact 85 to 99,  Compact 100 to 109,  Mid-Size 110 to 119,  Large 120 or more

Station Wagons  Small < 130,  Mid-Size 130 to 159,  Large160 or more

But that's kind of old separations- the current targets are based on vehicle footprint as opposed to interior volume.  So these really large cars have lower targets than other compact cars just because they are so long.

MadScientistMatt
MadScientistMatt UltimaDork
7/27/21 7:18 a.m.
Appleseed said:

Anyone want to start guessing without reading the article first?

My guess? Chrysler/Fiat-whatever the hell its called this week.

I had sort of expected to see Dodge on there - and also for them to take out advertisements that they made the list, sort of like the time they ran an ad with the NHRA's letter complaining the Demon did not have the safety gear it needed for its performance.

STM317
STM317 UberDork
7/27/21 7:27 a.m.
alfadriver said:
STM317 said:

It makes zero sense to me that Rolls has no fully electric option by now. Their whole thing is quiet, effortless, smooth travel in enormous vehicles. What does that better than silent, torquey EVs?

Probably will happen as soon as BMW makes a big enough system.  As far as I can tell, Tesla is the only one with an appropriate powertrain for a Rolls, and I don't see BMW buying from them.

Right. I'm just surprised it hasn't happened sooner. It seems like BMW will have a reasonably capable EV platform coming to market in the next year sometime that's expected to eventually underpin an electric 7 series, and then perhaps a Rolls.

Same with Bentley and their access to the VW/Audi/Porsche parts bin. I'm sure they're coming, but I'm surprised they weren't the first places that EV powertrains were used. It's 'de rigueur' to roll out the highest, most expensive trim levels of a new EV first. It seems like an EV ultra-luxury vehicle fits that philosophy to a T. EV's seem like a perfect fit for the dynamic goals of these types of vehicles, and the manufacturers can hide the high cost with no problems.

 

APEowner
APEowner GRM+ Memberand SuperDork
7/27/21 9:06 a.m.
STM317 said:

It makes zero sense to me that Rolls has no fully electric option by now. Their whole thing is quiet, effortless, smooth travel in enormous vehicles. What does that better than silent, torquey EVs?

They're also about in your face, I'm rich and you're not, excessive consumerism and burning unnecessarily large amounts of fossil fuel says that about as well as anything. 

APEowner
APEowner GRM+ Memberand SuperDork
7/27/21 9:12 a.m.
codrus (Forum Supporter) said:
AngryCorvair (Forum Supporter) said:

"Most inefficient carmaker" is not the same as "maker of most inefficient cars"

Yup.  Carmaker efficiency is probably best measured by profit margin %.

Interesting.  I was thinking about manufacturing efficiency, as in wasting time and materials during the build process.  No doubt my background in manufacturing had me thinking in those terms.

GCrites80s
GCrites80s HalfDork
7/28/21 11:13 a.m.

Recovering cost of capital for a specific project or product is one thing, then there's recovering cost of capital investment for the entire company, then your net profit margin which shows how efficient the marketing and administration of the company is compared to the gross profit margin (which doesn't contain marketing and administration). All are measures of efficiency really.

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