ERA R4D

Mays set numerous pre-war records in R4D, including Prescott and Shelsley Walsh hill climbs, Brighton Sprints and Brooklands Mountain Circuit.

After World War II R4D continued in active competition, but the demands on Mays's time created by the evolving BRM project meant he competed less frequently.

[4] From the mid-fifties onward, the car had a variety of owners, but achieved notable success in historic racing in the hands of Neil Corner and Willie Green (the latter driving for Anthony Bamford).

R4D rose to pre-eminence again in the hands of Anthony Mayman, achieving many successes and setting many pre-war class records at various venues.

Madge Hulbert sold the car to Brian Fidler in late 2015, and Nick Topliss drives it in competition.