Toyota yaris - bugging the crap out of me.

[pcgeek1510]

How can the EPA post mileage estimates for the toyota yaris without specifying if its the liftback or the sedan. Just because they have the same drivetrain, does not mean they have the same fuel economy. The liftback is probably much more aerodynamic, why wouldnt it have a different EPA rating?

[GasSavers_BIBI]

The difference is probably marginal.

[theholycow]

The listings on fueleconomy.gov are not well specified and not complete. If you want to be sure just check the specs for each car on their window stickers or on toyota.com.

Also, wouldn't a sedan be more aerodynamic, letting the air down gently instead of dragging a big vacuum behind it?

[101mpg]

No, it's called a Kammback. Honda CRX, etc.

[hybriDatsun350]

The sedan is most likely the more aerodynamic of the two, but I'm sure they are so close in FE that there is no need to report numbers on both models.

[pcgeek1510]

but the sedan would probably weigh at least an extra 100 lbs with the doors, etc.. Im sure the difference could be 1-2mpg. Also the liftback has a shorter wheelbase. :/.

[theholycow]

I checked toyota.com. The sedan is slightly lighter than the liftback (makes sense because it doesn't have as much sheet metal and glass).

Surprisingly, you're right that the liftback has a shorter wheelbase. Why would they do that? Wouldn't it be far cheaper and easier to make them the same?

What's with the Yaris, in fact? The sedan has a little more passenger volume, 30% more cargo space, is lighter, is less tall, less wide, but significantly longer than the liftback.

Toyota's site lists exactly the same EPA ratings for sedan and liftback. Edmunds.com lists the same drag coefficient for both, surprising considering the differences in shape, width, height, and length.

I would say the sedan is the better choice for hypermilers and people looking for the maximum practicality. The liftback only wins if you need to park in ridiculously short spaces, carry bulky items, or look "cool" among your hypermiler friends.

http://www.toyota.com/yaris/specs.html
http://www.edmunds.com/insideline/do...ticleId=108501

[Jonathan_ED3]

Originally Posted by theholycow

I checked toyota.com. The sedan is slightly lighter than the liftback (makes sense because it doesn't have as much sheet metal and glass).

Surprisingly, you're right that the liftback has a shorter wheelbase. Why would they do that? Wouldn't it be far cheaper and easier to make them the same?

What's with the Yaris, in fact? The sedan has a little more passenger volume, 30% more cargo space, is lighter, is less tall, less wide, but significantly longer than the liftback.

Toyota's site lists exactly the same EPA ratings for sedan and liftback. Edmunds.com lists the same drag coefficient for both, surprising considering the differences in shape, width, height, and length.

I would say the sedan is the better choice for hypermilers and people looking for the maximum practicality. The liftback only wins if you need to park in ridiculously short spaces, carry bulky items, or look "cool" among your hypermiler friends.

I agree 100%.

As a side-note, we have been pleased with the mileage of the Yaris (sedan) so far.

[civic lover]

Originally Posted by theholycow

I checked toyota.com. The sedan is slightly lighter than the liftback (makes sense because it doesn't have as much sheet metal and glass).

Surprisingly, you're right that the liftback has a shorter wheelbase. Why would they do that? Wouldn't it be far cheaper and easier to make them the same?

What's with the Yaris, in fact? The sedan has a little more passenger volume, 30% more cargo space, is lighter, is less tall, less wide, but significantly longer than the liftback.

Toyota's site lists exactly the same EPA ratings for sedan and liftback. Edmunds.com lists the same drag coefficient for both, surprising considering the differences in shape, width, height, and length.

I would say the sedan is the better choice for hypermilers and people looking for the maximum practicality. The liftback only wins if you need to park in ridiculously short spaces, carry bulky items, or look "cool" among your hypermiler friends.

http://www.toyota.com/yaris/specs.html
http://www.edmunds.com/insideline/do...ticleId=108501

where do you find the drag coefficient numbers at edmunds?

[theholycow]

Originally Posted by civic lover

where do you find the drag coefficient numbers at edmunds?

In the link I posted before:
http://www.edmunds.com/insideline/do...ticleId=108501
it says this:

With a coefficient of drag of just 0.29, both the sedan and Liftback slip through the air with ease, promising a quieter ride and greater fuel economy at freeway speeds.

It's the fifth paragraph, just above the bolded heading "Fraternal, not identical twins".

Originally Posted by goofy1

btw the 2 door yaris has more head room then the sedan
38.8/36.7 compared to 39.4/37.9 in the 2 door yaris

Yeah, I just realized, the extra height that I thought would be worse for drag would have to be better for headroom.