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This is just wrong. The numbers in the OP are based on a slide presentation linked to in the linked article. Somebody screwed up. The presentation shows $0.1B revenue on 10k units sold in Q1 2024. Taken at face value that's an average selling price of $10k per EV. Also, Ford sold 20,223 EVs...

Why not start with the TRA Load Inflation Tables? They're available on both Toyo's and Falken's websites. https://www.toyotires.com/media/pxcjubjs/application_of_load_inflation_tables_20200723.pdf For a gas Rubicon, the stock tire is LT285/70R17 at 37 psi, with a load rating of around 2200 lbs...

One should expect the wider rim to put more rubber on the pavement at the same pressure, and more rolling losses as a result. I don't know about 15% worth though. Here's a question: Coasting down a steep hill, foot off the gas, can you tell any difference between the two wheelsets? (Maybe put...

Ouch. Indeed, I would have mentioned it. It’s outside my wheelhouse but I doubt that contact patch is useful in predicting fuel economy. It boils down to estimating energy losses due to deformation of the rolling tire and friction with the pavement. Contact patch doesn't tell you anything...

Interesting. Just adding 19 lbs to each wheel should not affect acceleration and fuel economy that much. It would take around 3% more energy to accelerate to a given speed with the heavier set vs the lighter set, all else being equal. An impatient driver could lose more than 3% fuel economy, but...

That was rude of me and I apologize. Could you (or anyone) enlighten me as to what "tag me" means? You are absolutely right, it's unrealistic. Any sane choice of rim for a JT is 20+ lbs nowhere near the tread. The case I had in mind was putting a bigger tire on the same rims. Most of the...

Of course gearing matters. Let's take it out of the equation and see how you feel. Truck 1 is stock with 33s and a 4.10:1 rear diff, plus some added non-rotating mass on each corner to level the playing field with Truck 2. Truck 2 has 37s and a proportionally regeared rear diff at 4.60:1, and...

This is spectacularly wrong but it's not worth explaining in detail why on a forum. The engine adds kinetic energy to the vehicle. The rate at which it does so is power. If, due to heavier tires, the vehicle has say 5% more kinetic energy at a given speed than it did with the lighter tires...

TLDR. For the purposes of acceleration and braking, the effective weight of a spinning wheel is up to twice the actual weight. The kinetic energy of a spinning wheel on a moving vehicle is up to twice that of the same mass at the same speed without the rotation (e.g., the spare). The ratio is...

Indeed, I think 45 psi is too high. Discount Tire determined that from their tire load inflation tables. The stock tires at 36 psi are rated for 2200 lbs. According to the table a load range E tire requires 43.5 psi to achieve that rating. The manufacturer's rep recommended 35 psi. He also told...

I measured front and back somewhere in 33.75-33.875" with a tape measure and a level on the top of the tire. I don't have enough hands to take a photo. That was with maybe 150-200 lbs of in the back seat. I later took everything out and measured again but it still didn't get to 34".

I just put M/T Baja Boss A/T LT255/85R17 (35x10.00R17) on my unlifted Sport Max Tow on take-off JLR rims. The manufacturer's stated diameter and tread width are accurate and they raised the differentials about 1.75" at 45psi over the stock 245/75R17 Duellers at 36psi. So far I'm very happy with...