More than 250 Northland boy racers have been convicted under laws brought in to crack down on illegal street racing.
However, the threat of drivers losing vehicles to a "third strike and you're out" offence appears to have deterred them, with no cars confiscated and crushed in the North.
Figures released under the Official Information Act show Northland showed 257 street racing convictions from December 2009 to June 2013. Ten were second-strike convictions. There were no third-strike offences.
The 2009 "Boy racer legislation" gave courts power to destroy a car if a driver ticked up three illegal street racing offences in four years.
Offences include racing, speeding, and "sustained loss of traction", which includes "burnouts" and "drifting".