ever enjoy the song Summertime, by Mungo and Jerry?

The revving engine sound in the middle, is the sound of a Triumph TR6 roadster

When recording the track in Pye Studio 1, the band and producer Barry Murray needed a sound effect to match the song's open-road theme. Because they didn't have a motorcycle handy, the recording engineer (Howard Barrow) drove his Triumph sports car past the studio building while a microphone was set up outside on the ramp to capture the exhaust noise. 

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