And just as you can voice match a recording to an individual you can match sound of the offending vehicle to a audio signature library that will be quickly built up. V8, straight six, boxer, Harley - potato potato potato, Vincent Black Lightning or the unique sound of the Ducati.
Since 1973, new cars have been required to meet Europe-wide noise limits. Limits have progressively reduced from 82 decibels in 1976 to the current limit of 74 decibels. There is a law concerning altered exhaust systems in relation to use of motor vehicles on a road:
https://essex.police.uk/getmedia/5a4aaf ... fences.pdf
In the case of the E-Type the exhaust system pre-dates Type Approval and 1973 so difficult to prove it had been altered (big bore tubes, straight through silencers, tubular manifolds). The Police could use "Avoidance of excessive noise – Reg. 97 The Road Vehicles (Construction & Use) Regulations 1986" as the basis of a prosecution though:
"No motor vehicle shall be used on a road in such manner as to cause any excessive noise which could have been avoided by the exercise of reasonable care on the part of the driver."
Fairly academic though if you are observant and look for the yellow cameras and lift off. No doubt Waze and other navigation systems will announce their presence as well although you may not be able to hear the warning over the noise!
The full report which recommends the use of these cameras is here:
https://assets.publishing.service.gov.u ... ations.pdf
Interesting read and covers legislation applied in several countries and remedies.
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