Here's twenty-odd covers I've been sitting on for weeks, courtesy of Vincent Goffin, from Opatija (1939–1977) and Grobnik (1978 – 1991) in Croatia. Apologies to everyone who sent covers through the month that haven't appeared yet — they will all be added (or updated) soon.
Thanks to Ashley Barnard for the programme cover of the Classic Sports Car Club's 2018 season-opener, taking place at Snetterton Circuit this weekend; Bob Williamson for four National Open Meeting covers from the 1960s and '70s at Catalina Road Racing Circuit; Cliff Price for the opening round of the 2018 British Superbike Championship at Donington Park, and the Classic Motorcycle Racing Club's first meeting of 2018, at Pembrey Circuit; Jochen Bangert for the 2011 Süd West Classic rally cover; Oliver Hartmann for seven Roskilde Ring programme covers from the late 1950s and early '60s; Robert Barnett for covers of some rare SCCA Regional and National Championship Race programmes from Riverside International Raceway and Phoenix International Raceway; Thomas Hattwig for the 2018 Rebenland Rallye cover (see Rallies); and thanks to Wolfgang Neumayer for an F3 cover from Mantorp Park in 1976 and an F1 cover from Singapore (Marina Bay) in 2014.