There is a similar (although less dangerous) track there near quetta. The offroaders, including bikers and four wheelers gather there on sundays. the place is at about 10-15 kms, left side right on quetta ziarat road. These days i dont know what they do, but i went there sometime back and there were all kinds of four wheels and heavy bikes, which are already in abundance there due to non custom paid system and chaman border. Maybe some member from quetta can put us more wise on the subject.