<P> A 2008 estimate reported that 52 % of the autobahn network had only the advisory speed limit , 15 % had temporary speed limits due to weather or traffic conditions , and 33 % had permanent speed limits . Measurements from the German State of Brandenburg in 2006 showed average speeds of 142 km / h ( 88 mph ) on a 6 - lane section of autobahn in free - flowing conditions . </P>
<P> A 2008 estimate reported that 52 % of the autobahn network had only the advisory speed limit , 15 % had temporary speed limits due to weather or traffic conditions , and 33 % had permanent speed limits . Measurements from the German State of Brandenburg in 2006 showed average speeds of 142 km / h ( 88 mph ) on a 6 - lane section of autobahn in free - flowing conditions . </P>
what is the average speed on the autobahn
what is the average speed on the autobahn
142 km / h ( 88 mph )
142 km / h ( 88 mph )