 For 1934 he asked Rolls-Royce to modify a Bentley 3½-litre, which they initially refused to do because the company had long since quit racing.Reasoning that as this car was a private entry failure would not reflect badly on the factory, however, Rolls-Royce assisted Hall by increasing the output of his engine from the standard 114 bhp to a more useful 131 bhp.It was the first competition car built at Rolls-Royce since the car built for Charles Rolls which he had driven to win the 1906 TT, and it was also their last.