Bentley's new 4.0-litre bi-turbo V8 is 40 per cent more efficient than the company's W12, yet still produces 500bhp. But how well does it deliver in the new ...
Bentley's new 4.0-litre bi-turbo V8 is 40 per cent more efficient than the company's W12, yet still produces 500bhp. But how well does it deliver in t...
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