Question: What is the name of the British car that debuted at the Earls Court Motor Show, London, on 20 September 1948, from which the floorpan, suspension and steering were utilised for the Riley One-Point-Five?
Sentence (from "Riley One-Point-Five"): The Riley One-Point-Five and similar Wolseley 1500 are automobiles which were produced by Riley and Wolseley respectively from 1957 to 1965.
Relevant evidence: Yes