Coast to coast race: Model Y vs R2 (ABRP simulation)

[SDH]

AWD or RWD Tesla?

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[CrazyOne]

The drag coefficient of the R2 isn’t much different from the Model Y, which suggests it’s more about the aerodynamics of the car than the efficiency of the drivetrain. And the R2 holds more kWh than the Model Y, about 10kWh more.

So imo, it’s not really better engineering wrt to pure EV tech.

R2 perf: (114 city, 96 highway)
My perf: (111 city, 100 highway)

A strong indication that with similar body, R2 will be more efficient. It already matches overall efficiency.

 

[Jeremy3292]

AWD or RWD Tesla?

My ABRP test was Model Y Performance on the previous page.

 

[SANZC02]

Incorrect.

R2 Cd is 0.29 and Model Y is 0.22 which is a huge difference. This shows how efficient R2 really is, not to mention a much larger frontal area on R2 too.

Curious where you found the R2 drag numbers. I’ve been looking but have never found it.

I saw some places saying it is better than the .297 of the R1S but never quantified.

 

[Jeremy3292]

Curious where you found the R2 drag numbers. I’ve been looking but have never found it.

I saw some places saying it is better than the .297 of the R1S but never quantified.

Google, it's estimated based upon the EPA detailed numbers.

 

[ksurfier]

They appear to be almost the exact same effiency, looks like MY may have a slight advantage over 65 mph and R2 a slight advantage under 50 mph...

I'm not sure either one has a significant advantage over the other (except for the fact the R2 has a bigger battery and likely more range under similar conditions). The newer non-performance MY is a different story, likely 20% more efficient than the R2...

Best apples to apples comparison is the MYL to the R2, both are 88 kWh batteries, looks like MYL is roughly 5% more effiencient...

MY and R2 are tied between ~50 to 60 mph

Under 45 mph R2 may be slightly more efficient

Over 65 mph MY is 5% more effienct

 

[André]

Tesla stated efficiency are far from real performance. I have a R1T Gen 1 and my wife a Model Y. I NEVER got to destination with the estimated % of range left in the Model Y but my R1T is pretty close every time no matter what is the temperature, wind, etc.

 

[DuoRivian]

According to OP, they are not comparable and MY is 20% more efficient.

OP was wrong. I don’t care what is in ABRP, the EPA figures are the like for like comparison to use (so mpge).

 

[ksurfier]

OP was wrong. I don’t care what is in ABRP, the EPA figures are the like for like comparison to use (so mpge).

Not really, you just want to compare the least effiecient MY to most efficient R2, which is fine...

According to the EPA:
>Base Model Y returns 138 MPGe,
>Model Y Premium RWD returns 125 MPGe,
>AWD version sits at 117 MPGe, and
>Performance AWD returns 104 MPGe

 

[DuoRivians]

Not really, you just want to compare the least effiecient MY to most efficient R2, which is fine...

According to the EPA:
>Base Model Y returns 138 MPGe,
>Model Y Premium RWD returns 125 MPGe,
>AWD version sits at 117 MPGe, and
>Performance AWD returns 104 MPGe

OP was wrong. I don’t care what is in ABRP, the EPA figures are the like for like comparison to use (so mpge).

I see the OP’s Tesla’s numbers on fuel economy’s website.

And the R2’s (performance) fuel economy shows:
- 105 combined (114 city, 96 highway)

So, we’ll have to wait and see what the R2’s nonperformance numbers look like.

 

[SANZC02]

Not really, you just want to compare the least effiecient MY to most efficient R2, which is fine...

According to the EPA:
>Base Model Y returns 138 MPGe,
>Model Y Premium RWD returns 125 MPGe,
>AWD version sits at 117 MPGe, and
>Performance AWD returns 104 MPGe

Would apples to apples not be these 2 Configurations?

 

[DuoRivians]

As a point of comparison, the new BMW iX3 gets 128 mpge *highway* in real world driving

 

[Jeremy3292]

Would apples to apples not be these 2 Configurations?

Yeah not sure what the arguing is about here. R2 P has a bigger battery so goes further in the city where aero is insignificant, while Model Y P has better aero so goes further on the highway where drag is the biggest range killer. Should be Performance trim vs Performance trim for comparison.

 

[DuoRivians]

Yeah not sure what the arguing is about here. R2 P has a bigger battery so goes further in the city where aero is insignificant, while Model Y P has better aero so goes further on the highway where drag is the biggest range killer. Should be Performance trim vs Performance trim for comparison.

At least for me, my “arguing” is that since the Model Y launched in 2019, there hasn’t been that much improvement in the fundamental EV tech. I suppose you can say the same thing about the Model Y.

Whereas EVs in China and even BMW are showing much more improvements over this time. For example, the BMW iX3 gets 128 mpge on real world highway driving at 70mph. Neither the R2 nor current Model Y, on any trim, is close to this highway number.

Yes, the BMW iX3 costs more but you also get a much bigger battery (20kwh more than R2) for that money, even without considering the 400kw charging speed.

I was pointing out that we’re basically paying the same money for essentially very small incrementally better EV tech over the past 7 years

 

[iowa_don]

Seems like you are ignoring the Model Y advances since its introduction in 2020.

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