The album was both inspired and funded by Petit's time spent performing as part of the Licensed Busking scheme on the London Underground in 2003.

The album's first pressing was initially available only on the London Underground before being taken on by major UK commercial retailers and online outlets.

The album is in a Digipak format with a 16-page colour booklet featuring photography from street photographer John Gladdy.

Guitararama is predominantly instrumental and appeals to "both the mature, arts-appreciative audience and the younger, guitar-inquisitive end of the market."

Guitar & Bass Magazine placed Guitararama in its "Top 10 Albums of the Year", writing that "Petit’s vim and vigour are matched by his fine technical skills... proof positive that the blues can move forward in the 21st century.