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Speedo accuracy - impressive

Posted: Fri Mar 25, 2022 4:20 pm
by alan sh
My old BMW X3 seemed to have a pretty accurate speedo - 73 showing was 70 compared to my GPS powered dashcam.
My wife's Rav4 is worse - 75 is 70.

My new Tucson - 71 indicated is 70 real. I'm pretty impressed with that. It means I don't have to keep looking at my dashcam (which shows the real mph) and can rely on the digital speedo of the car.

Alan

Re: Speedo accuracy - impressive

Posted: Fri Mar 25, 2022 6:38 pm
by old man
(which shows the real mph
Only whilst driving on a flat surface. Dash cams and sat navs that take info from satellites don't take into account undulations on the earths surface.

Re: Speedo accuracy - impressive

Posted: Fri Mar 25, 2022 6:46 pm
by alan sh
Tested on a UK motorway. Accurate enough for me (and yes, I do understand how GPS's work).

Alan

Re: Speedo accuracy - impressive

Posted: Fri Mar 25, 2022 10:09 pm
by old man
(and yes, I do understand how GPS's work)
Indeed, but perhaps other readers don't. :|