This period photo from an Esso ad shows a rally MGB GT literally flying. Not bad for a relatively heavy car without much power although who knows what lurks under the hood or how big the bump was. Pretty cool!
I don’t think I’ll try this with my GT.
PS – Further investigation reveals this information:
Ian McKean piloting factory MGB GT V8 number 104, which was one of the original LHD prototypes! This photo is from the Cheltenham Stages Rally of July 1975. Ian McKean finished 5th overall. The gentleman in the orange helmet is navigator J. Kerswell.