It started in 1915 while he was home recovering from battle wounds that his father picked-up a 20hp two-seater Singer.
After the Great War, he drove a 1914 Opel in the first post-war Brooklands race, and got completely hooked.
An acquaintance of his was connected to the Sunbeam-Talbot-Darracq automotive company, so he soon joined their team as a works driver.
Sir Henry Segrave racing a 1923 Sunbeam to win the French Grand Prix
Mobil "The Story of Grand Prix motor racing" card, art by Roy Nockolds
He was quite successful through the early to mid 1920’s with them, scoring some Grand Prix wins.
At this point, Sunbeam starting developing special cars aimed at achieving new land speed records. In 1926, he brought a V-12 Sunbeam to a new record of 152.33 mph.
Sir Henry Segrave reaching 203.79 mph
16"x 20" acrylic on canvas by Paul Chenard
For 1927, Segrave went for the ambitious goal of being the first to punch through the 200 mph barrier. In March of that year, driving the red twin-engine “1000HP” Sunbeam, he reached a world-record 203.79 mph on Daytona Beach Florida.
In March of 1929, he returned to Daytona Beach with the 930HP “Golden Arrow” and raised the record again to 231.44 mph.
For 1930, Segrave switched to power boats in an attempt to be the fastest man on water. Piloting Miss England II, he was trying to exceed a speed of 110mph when his boat tumbled and this courageous pioneer was killed at the age of 34.
Sir Henry Segrave in the 1000HP Sunbeam
Etched copper printing block, 7cm X 2.75cm (shown in reverse), circa ?