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anybody gps there evora s I think mine is slower than the car is going 120 really130 ?
My Evora reads fine. It matches my GPS +/- 1 mph.
My Elise speedometer was reading +5 mph higher than the GPS, which is very common.
 

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Mine speedometer is ~2 mph slower than GPS. My radar detector (Passport Max) displays my GPS speed at all times, so I've had extensive monitoring/comparison. I've never seen a speedometer in any vehicle that was 100% accurate with GPS. Even police cars whose speedos & radar are *supposed* to be calibrated usually aren't...and that suits me just fine, as it can be challenged with great success in the courtroom. But that's another story for another day.
 

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My Elise is dead on 5mph faster than gps
 

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mph accuracy

My Evora reads fine. It matches my GPS +/- 1 mph.
My Elise speedometer was reading +5 mph higher than the GPS, which is very common.
The Elise I used to have was always 8% too high. The Evora is somewhere between 5% to also 8% too high than what the Escort 9500ix GPS speed reads. The Elantra seems to be almost exact to the GPS speed readout.

I depend on the GPS speed when driving the Lotus and set the cruise control accordingly.
 

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The GPS dashboard on the alpine unit reports my speed 1-2 mph slower than my speedo does.
 

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Not that anyone asked, but my iphone, my Galaxy, and my Magellan all report different gps speeds too. Typically 3-4 mph variance, with the Magellan being the slowest and farthest outlier.
 

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When I was riding on OEM 18/19 rubber my speedo was always off from my GPS reading. After switching to the same diameter as the rubber on the 20" rear wheels it is dead on.
 
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