so your "speedo" was probably showing 150mph +
I do that occassionally .............. ......... on the French Autoroutes ...................................... but in kph
by mistake I hasten to add
at that speed, 150mph, in France they would take your car away and probably auction it off and you may have ended up spending the night behind bars at least
Just some useful info if you drive in France ........ they have tightened up a lot in the past couple of years ....... on every road
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More than 50kph over limit (31mph-plus) in France
€750 (£600) court deposit and car impounded. This is followed by a court case. If the motorist is deemed to have been driving dangerously, their car can be permanently confiscated. The court can retain the deposit and increase the fine to €1,500, or €3,000 for repeat offenders.
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Top tip from JC: if you are going to break the speed limit, make sure you’re not in France.
http://www.driving.co.uk/news/british-holidaymakers-warned-as-france-cracks-down-on-speeders/