Originally a standard K3 Magnette, in 1938 MG bought this car back from Captain George Eyston and rebuilt it to its present form, with an all-enveloping body designed by Reid Railton. Eyston had used it for road racing and record attempts. 

MG engaged Lieutenant ATG 'Goldie' Gardner to pilot EX135 and, on the Dessau autobahn in Germany, was able to raise the 1100 cc class record to over 200mph in 1939.

EX135 is now fitted with the supercharged 1250cc XPAG engine fitted in 1952 for Gardner's last record runs on the salt flats in Utah but was only to reach 190mph, rather than the anticipated 220mph.