1964 Lowood 4 Hour 1963 Armstrong 500 endurance race at Bathurst six months before and was using the same set of tyres that had been on the car during its earlier victory. Cars competed in four classes grouped according to the retail selling price of each car. Of the 20 cars which started the race, 17 finished and three retired. 1964 Lowood 4 Hour The 1964 Lowood 4 Hour was an endurance race for production cars staged at the Lowood circuit in Queensland, Australia on 12 April 1964. The race, which was promoted by the Queensland Racing Drivers' Club Ltd., was the first of
Top 20 on 20 through the internet. And in June 2009, Sirius XM Hits 1 programming began simulcasting on XM 20 On 20 from 9 p.m. to 12 Noon Eastern. The station was announced on both signals as "Sirius XM Hits 1 On 20 on 20". By September 2009, the channel was removed from Mediabase's reporting panel, and aired music mostly sourced from Sirius XM Hits 1; however, the channel's programming was still different from Sirius XM Hits 1. Until February 9, 2010, Sirius XM Hits 1 and Top 20 on 20 was heard on DirecTV channel 816 until DirecTV has stopped carrying Sirius