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I know it's been mentioned elsewhere in threads but for the record, just took mine out with a GPS showing around 7% variation across the range

30mph actual read approx 32.5
40mph actual read approx 43
50mph actual read approx 53.5
60mph actual read approx 64
70mph actual read approx 74.5
 

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I've yet to do a formal check, but on-the-go comparison of speedo and GPS speed in Torque Pro here in USA-spec Niro shows that car's speedo is only about 1 mph higher, and often the same. (Slight delay in GPS readout is bothersome.)

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I know it's been mentioned elsewhere in threads but for the record, just took mine out with a GPS showing around 7% variation across the range

30mph actual read approx 32.5
40mph actual read approx 43
50mph actual read approx 53.5
60mph actual read approx 64
70mph actual read approx 74.5
I've had my e-Niro since April 2019 and checked the speedometer early on against a GPS from 30 m.p.h. to 70 m.p.h. and found it consistently 3 m.p.h. over, which I think is just right.
 

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I know it's been mentioned elsewhere in threads but for the record, just took mine out with a GPS showing around 7% variation across the range

30mph actual read approx 32.5
40mph actual read approx 43
50mph actual read approx 53.5
60mph actual read approx 64
70mph actual read approx 74.5
By law the speedometer must not read slow and there is a complicated formula for the maximum permitted fast 'error' but in the EU (hurrah) it is roughly up to 10%. Our e-Niro is consistently about 4mph fast. Cruise control set to 75 gives true 70-71mph. I feel an electronic instrument could have been much more accurate without risking a slow reading, even with worn tyres! Is the setting more accurate in other jurisdictions - see US post?
 
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