![Two cars ended up badly smashed after alleged road rage in Northbridge.](http://web.archive.org./web/20170711000946im_/https://www.fairfaxstatic.com.au/content/dam/images/g/x/8/m/5/1/image.related.wideLandscape.620x349.gx8m5u.png/1499728851353.jpg)
Police probe Northbridge road rage after driver rammed, threatened with knife
Police have arrested a North Perth man after claims he rammed his car into a parked car multiple times before threatening the driver of that car with a knife on a busy Northbridge street on Monday night.