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Yup, it’s “conditioning the battery”, creating heat from excess battery discharge. The car will make a very high pitched noise under acceleration and deceleration. It’s not too loud, but it’s noticeable.

Sounds like it’s prepping the battery for supercharging, but by a glitchy mistake instead of on purpose. Or maybe Track Mode/etc. Try turning the car off and let it sleep (turn off sentry mode etc) for a few hours. And then see if when you drive it’s gone.

Is this the vegan leather? You should ask service to replace it, just in case it starts to get worse when you’re out of warranty.

There’s a significant drop off in max power for lower SoC for all cars in every model year, with the exception of probably the new Model S Plaid (according to a soundbite from Franz). There’s a chart out there but it’s something like this: 90% SoC: 1% drop off 75% SoC: 5% drop off 50% SoC: 8%...

True, still probably safe assumption of same diameter. Btw, how many miles do you get to full charge nowadays? I’m at 279, down from 310, aka 10% degradation. Just curious if that plays any (likely small) role in acceleration top-end drop-off for our 3-year old 2018s. I’m wondering if my 90%...

Aren’t diameter of both your cars’ “wheels including tires” the same? They should be the same, which would mean same acceleration (and accurate speedometers), unless one of you got some strange aftermarket tires. Weight difference I’m sure played a role though later in the race with more time...

Try powering the car off, wait 5 min, and then press brake pedal to wake it back up. Then, go to settings, select Chill mode, and then select Standard mode again. See if that works. Maybe it’s just a software glitch. You also won’t need to time the race to test if it worked. You’ll know...

Not a boost above 100mph for LR+, but further degradation of P. In other words, more of a decrease to P than the natural motor limit decrease, whereas LR+ sticks to natural motor limit decrease. I agree it makes little sense, but we’re just tossing around theories here until someone actually...

That’s true, but there’s a discrepancy with the LR+ consistently accelerating faster than P after (what seems like) 100mph. That graph I posted only gathers P data up to 99mph, as inconveniently coincidental as that is. I think we all agree it doesn’t make sense for LR+ to be faster up top...

SR+ is significantly lighter. With boost, might reach high 12s.

That could be tested/ruled out with a short 100-120mph pull between LR+ and P. I've seen a few videos online of even a non-boost LR vs. P starting at 80mph (so both cars are coasting at the time), and while accelerating they either stay even or the LR starts to pull later on. Carwow did a video...

Hope I calculated this correctly: Difference between MagnusMako's LR+AB and P runs in terms of time elapsed from 1/8mi to 1/4mi = 0.027sec Difference between MagnusMako's LR+AB and P runs in terms of mph gained from 1/8mi to 1/4mi = 6.16mph So, in essentially the same distance and time elapsed...

On second thought, the graph only displays data up until 100mph. I guess we have to assume LR+AB makes more power somewhere after 100mph compared to P in order to trap higher. Someones's gotta get that data!

Good stuff! The “higher average acceleration” is helpful to visualize. It’s just odd that CAN bus readouts of P and LR+AB’s power curve shows P making higher or the same power at any given speed:

Isn’t the reason why P traps lower speed is because it covers more distance quicker early on, which gives it less distance later to build speed before 1/4 mi is hit? Something about “time to distance” vs. “time to speed”. In other words, I’d assume the P must hit 120 in less time compared to...

I have a clunk sound that comes from the rear passenger side, but only occurs under the following conditions: 1) having just been parked and charging 2) taking a right hand turn at 5-10 mph in a parking garage down a slope once my car completes the turn down the slope (the rear passenger wheel...