>Note that *most* cars will read high on the speedo - somewhere around 5-7% >would be typical, so if you are doing "80", then you are only actually >doing about 74 - the allowable tolerance for a speedo is 0 to 10% (never >negative - many years ago it was -10% to +10%). The only easy way to check
>the speed is with a GPS. >Ron Jones When we went boating on the Charente a couple of years ago I got my fron seat passenger to check the speedo on my Mark 1 Zafira against his GPS. At all speeds from 20 to 85 it was spot on. The GPS got confused my the new bits of motorway that France is constantly opening but was quite happy to show where we were when we were on the river. Colin
