What's this car and when?
Expert!
Up!
1921 Horstmann 1.5 liter racing car by Horstman (formerly Horstmann) Cars Ltd., Bath, Somerset, UK.
Correct.
The driver is T.Edwards pictured at the 1921 JCC 200-mile race at Brooklands. The puzzle image site states it is Anzani powered, but the results I found claim Coventry-Simplex. Isn't the internet a wonderful thing?