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19" wheels vs 18" - comparison test from Edmunds

drawfour

Member
Mar 10, 2018
774
709
Seattle, WA
The 19s look better, but I think it's just the hubcaps. I wonder if there's anything that can fit the 18s to have a similar look. Also, I'd heard other people saying the 19s were rougher than the 18s... I think my preference would be 18s, where I'd use the Aero caps for road trips, to get the range, and then either take the Aeros off or put some caps on that look like the 19s. Or who knows, depending on the trip, I might just leave the Aeros off...
 

novox77

1.21 Gigawatts
Nov 25, 2017
1,642
3,554
NH, MA
Very cool. Not terribly surprising either. I think it makes it an easier choice: 19s for that performance edge, 18s for efficiency edge, and aesthetics as a tiebreaker where necessary.

I lean toward the efficiency side of things, and I consider the 18" performance good enough. Daily commute in freeway traffic is the primary use of this car. On really crappy roads.
 
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RDaneel

Member
Apr 3, 2016
162
174
New Jersey
I don't think much of the noted difference is due to the size of the wheels as much as the difference in tires. Put Pilot 4s on the 18s and you will probably outperform the Continental all-seasons that ship on the 19s. I think the moral of the story is that the Michelin Primacy is a poor-performer when it comes to grip as it is designed to be long-lasting and efficient (which it seems to be).
 

azentropy

Member
Mar 26, 2018
184
109
Surprise, AZ
I don't think much of the noted difference is due to the size of the wheels as much as the difference in tires. Put Pilot 4s on the 18s and you will probably outperform the Continental all-seasons that ship on the 19s. I think the moral of the story is that the Michelin Primacy is a poor-performer when it comes to grip as it is designed to be long-lasting and efficient (which it seems to be).

Exactly what I was going to write.
 

dhanson865

Active Member
Feb 16, 2013
4,672
7,705
Knoxville, Tennessee
I don't think much of the noted difference is due to the size of the wheels as much as the difference in tires. Put Pilot 4s on the 18s and you will probably outperform the Continental all-seasons that ship on the 19s. I think the moral of the story is that the Michelin Primacy is a poor-performer when it comes to grip as it is designed to be long-lasting and efficient (which it seems to be).

I'd add that the GVWR is lower on the 19" tires, so you can't load the car fully and be as safe on them.

model3tireswithnotes-png.291865
 

smorgasbord

Active Member
Jun 3, 2011
3,224
5,134
SF Bay Area
Interesting that he also says the ride is more comfortable on the 19" due to running at a lower tire pressure.That goes against the conventional wisdom expressed in many TMC posts.

The skidpad improvement is not just a tire comparison, but also I think a reflection of the shorter and thus stiffer sidewall.
 

Daniel in SD

Well-Known Member
Jan 25, 2018
6,857
9,734
San Diego
Interesting that he also says the ride is more comfortable on the 19" due to running at a lower tire pressure.That goes against the conventional wisdom expressed in many TMC posts.

The skidpad improvement is not just a tire comparison, but also I think a reflection of the shorter and thus stiffer sidewall.
It is just a tire comparison. Whenever I see what setups people run to get the fastest lap times they're not upsizing the diameter. Sometimes people even go down a size. Put some summer tires on either the 18s or 19s and you'll blow away all Edmund's test numbers.
 
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RDaneel

Member
Apr 3, 2016
162
174
New Jersey
It is just a tire comparison. Whenever I see what setups people run to get the fastest lap times they're not upsizing the diameter. Sometimes people even go down a size. Put some summer tires on either the 18s or 19s and you'll blow away all Edmund's test numbers.

Exactly. This is why I have the 19" rims I bought from somewhere here with PS4s mounted already. Can't wait to carve some twisties...
 
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T34ME

Active Member
Mar 31, 2016
2,262
3,528
Inland Empire
I think it is funny that publications like Edmunds are changing their tune about the model 3 once they take a more studied and in depth look. Did you notice the "Tesla grin" on the reviewer's face? :D ;)
 
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fluxemag

Member
Jan 10, 2013
477
183
Portland, OR
Once I wear out the Michelin stock tires on the 18's, I'll put winter tires on and buy a set of 19's for summer tires. I have my own little tests that I've done over the years in my old Model S, a BMW 4 series with AWD, and now the Model 3, and the 3 leaves something to be desired in grip in its current setup in wet and dry conditions. I had Conti DWS tires on the last two cars, and those work well for all seasons, but I'm ready to graduate from "no season" tires.
 
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