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Tesla reintroduces 'Mad Max' Full Self-Driving mode that breaks speed limits
(www.engadget.com)
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this post was submitted on 18 Oct 2025
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I’m not sure what this system does, but my non-Tesla car can adjust its intelligent cruise control by speed limit signs it sees, and you can tell it to have a buffer. Mine is set for +5, so if the sign says 45 miles per hour, the car drives itself at 50 mph.
If it’s something like that, which you set yourself, it’s probably fine. Just know what the police in your area enforce. Where I live you can generally go five over without an issue, ten over on the freeways. Everyone does this, so if you go the speed limit you end up annoying everyone.
If it didn't, it would be pretty damn annoying as cars always show higher than actual speed. I've had to set our BMW to do +8km/h so that it actually does 120km/h on GPS and not 112.
Although that is true, your car is quite extreme in that regard. In Germany cars are not allowed to deviate by more than 3kph at speeds below 100, and 3% at speeds above 100. I doubt BMW uses different speedometer for cars sold in foreign countries so I'm pretty sure there is something wrong with yours. Maybe you installed smaller diameter tires than from factory?
Hmmh, could be, though both are "from the factory", the winter/summer tires are slightly different sizes. But the allowed error in the EU overall (or at lesst in Finland) is 10% +4km/h, so it's still well withing "spec".
Are your tires fully inflated?
This is kinda dumb. So they have to adjust speed limits below safe levels so you don't get over it?
I've driven by a few radar speed indicators in my car, and I'm consistently going 4 km/h less than what my digital speedometer says, regardless of speed. I find it difficult to believe this is an accident. So if I had your vehicle and it behaved like my speedometer does, I would still only be +1 over the limit. Also, I now drive with my speedometer +5 to +9 relative to the speed limit, which keeps me more in line with the traffic around me.