 On 14 November 1896, Simms and Daimler took part in The Motor Car Club's Emancipation Day procession from London to Brighton, co-organised with H J Lawson, celebrating the lifting of the speed limit under the Locomotive Act which had required vehicles to travel no faster than .This Emancipation Day drive is still commemorated by its annual replay, the London to Brighton Veteran Car Run.Simms founded the Automobile Club of Great Britain (later the RAC) in 1897.