Inch­ing closer to speedo ac­cu­racy

Herald Sun - Motoring - - Carsguide Confidential - Twit­ter: @PaulWardGover

LOTS of peo­ple get in touch with Cars­guide to com­plain about the ac­cu­racy of their car’s speedome­ter.

When you drive an old HiLux ute, as I do, you of­ten won­der just how far from the mark the speedome­ter nee­dle could be point­ing.

Now I don’t have to won­der, or worry, af­ter a $130 dive into the world of the web.

I’ve found a wire­less dig­i­tal speedome­ter that links to GPS to give me a con­tin­u­ous and ac­cu­rate read on my speed.

The Mit­sug­awa speedo and I struck up a friend­ship when driv­ing a new Mazda MX-5 in Scot­land, where lo­cal rules mean the km/h cal­i­bra­tions on the speedome­ter had to be sup­ple­mented by an old­school miles per hour read­ing.

In a coun­try where met­ric mil­lime­tres are still over­ruled by his­toric inches, I found the com­pact Mit­sug­awa clear, ac­cu­rate and easy to po­si­tion. It can be charged from a 12V socket and has a pow­er­ful suc­tion pad to fix it to the in­side of the wind­screen.

Back at home, an iden­ti­cal de­vice al­lows me to check the ac­cu­racy of ev­ery test car’s speedo. It pro­vides an in­stant head-up dis­play, with greater clar­ity than lots of cars with tightly packed read­ings in a com­pact dial.

My stick-on speedo runs for 20-odd hours be­tween USB plug-ins, is well lit for night driv­ing and is a lot cheaper than a full-scale sat­nav that pro­vides sim­i­lar ac­cu­racy but with a much smaller speed read­out.

How fast are you go­ing now? GPS speedome­ter

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