Our friends were carjacked recently - a very nasty attack and my wife is becoming increasingly anxious about driving on her own at night.
Would it be legal to install an air horn (the sort that plays Colonel Bogey at a very high volume) to be used only in this sort of emergency? My thinking is that it would attract more attention than the standard car horn and might frighten any attackers off.
According to the Motor Vehicle Construction and Use regs 1986 (Clause 37 if you want to look it up), "no motor vehicle shall be fitted with a bell, gong, siren or 2 tone horn". The horn must be "continuous and uniform and not strident". However, one of the exceptions is "if the purpose thereof is to prevent theft or attempted theft of the vehicle or its contents"....
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