Pardon, is the question, "What does the 'CSC' in the car's name stand for?", for an extra point?
You asked with this puzzle for, "What's this, who built it, when, using what parts - for 1 point?"
To precise my answer:
What's this: CSC Mk III (car's name in three books)
Who built it: Gainsborough Engineering Co Ltd, Middleton, Lancs., Wrigley Motors Ltd., Middleton, Manchester (Source: Automobile Manufacturers Registry)
When: 1955
Using what parts: Bodywork: Rochdale Mk VI, Engine: Austin A30, 803cc, 30php/4800rpm, Wishbone suspension on both ends, transverse leaf spring front and rear, 16" wheels, weight: 11,5 cwt, max. speed: 70 mph
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