The Campbell-Railton Blue Bird was Sir Malcolm Campbell's final land speed record car.

Although actually higher, this increased width gave the impression of a much lower and sleeker car, accentuated by the long stabilising tailfin and the purposeful raised ridges over the engine camboxes.

This reduced the load on each drive, allowed the driver position to be lowered, but required the wheelbase to be shortened asymmetrically on one side by 1+1⁄2-inch (38 mm).

On 7 March 1935 Campbell improved his record to 276.82 miles per hour (445.50 km/h), but the unevenness of the sand caused a loss of grip and he knew the car was capable of more.

On 3 September 1935, it reached 301.337 miles per hour (484.955 km/h) breaking the 300 mph barrier for the first time by a bare mile-per-hour, crowning Sir Malcolm Campbell's record-breaking career.